27913356720 has 120 divisors (see below), whose sum is σ = 99256656096. Its totient is φ = 7005702144.

The previous prime is 27913356661. The next prime is 27913356721. The reversal of 27913356720 is 2765331972.

27913356720 is a `hidden beast` number, since 2 + 79 + 13 + 3 + 567 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (27913356721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1128012 + ... + 1152491.

Almost surely, 2^27913356720 is an apocalyptic number.

27913356720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27913356720 is an abundant number, since it is smaller than the sum of its proper divisors (71343299376).

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

27913356720 is a wasteful number, since it uses less digits than its factorization.

27913356720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280539 (or 2280530 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 27913356720 in words is "twenty-seven billion, nine hundred thirteen million, three hundred fifty-six thousand, seven hundred twenty".