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27770607406460 = 2254332291403961
BaseRepresentation
bin1100101000001110110010…
…01100001000110101111100
310122022211210101012202200002
412110013121030020311330
512114443200444001320
6135021350234453432
75564234353122452
oct624073114106574
9118284711182602
1027770607406460
1189374a29a2556
123146168294278
1312659ac2b3739
146c0166d249d2
1533259d230675
hex1941d9308d7c

27770607406460 has 24 divisors (see below), whose sum is σ = 59674514521776. Its totient is φ = 10849911730560.

The previous prime is 27770607406441. The next prime is 27770607406543. The reversal of 27770607406460 is 6460470607772.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 27770607406396 and 27770607406405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16145701121 + ... + 16145702840.

It is an arithmetic number, because the mean of its divisors is an integer number (2486438105074).

Almost surely, 227770607406460 is an apocalyptic number.

27770607406460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27770607406460 is an abundant number, since it is smaller than the sum of its proper divisors (31903907115316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27770607406460 is a wasteful number, since it uses less digits than its factorization.

27770607406460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32291404013 (or 32291404011 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 56.

The spelling of 27770607406460 in words is "twenty-seven trillion, seven hundred seventy billion, six hundred seven million, four hundred six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 32291403961 64582807922 129165615844 161457019805 322914039610 645828079220 1388530370323 2777060740646 5554121481292 6942651851615 13885303703230 27770607406460