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68436871614 = 2323802048423
BaseRepresentation
bin111111101111001001…
…111100100110111110
320112122111001021211200
4333233021330212332
52110124314342424
651234531400330
74641633545016
oct775711744676
9215574037750
1068436871614
1127029914631
121131b4530a6
1365b8651507
14345319cc46
151ba82968c9
hexfef27c9be

68436871614 has 12 divisors (see below), whose sum is σ = 148279888536. Its totient is φ = 22812290532.

The previous prime is 68436871561. The next prime is 68436871619. The reversal of 68436871614 is 41617863486.

It is a super-2 number, since 2×684368716142 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68436871619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1901024194 + ... + 1901024229.

It is an arithmetic number, because the mean of its divisors is an integer number (12356657378).

Almost surely, 268436871614 is an apocalyptic number.

68436871614 is an abundant number, since it is smaller than the sum of its proper divisors (79843016922).

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

68436871614 is a wasteful number, since it uses less digits than its factorization.

68436871614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802048431 (or 3802048428 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 68436871614 in words is "sixty-eight billion, four hundred thirty-six million, eight hundred seventy-one thousand, six hundred fourteen".

Divisors: 1 2 3 6 9 18 3802048423 7604096846 11406145269 22812290538 34218435807 68436871614