129356338963608 has 96 divisors (see below), whose sum is σ = 371176325966160. Its totient is φ = 40557437153280.

The previous prime is 129356338963559. The next prime is 129356338963661. The reversal of 129356338963608 is 806369833653921.

It is a happy number.

129356338963608 is a `hidden beast` number, since 1 + 2 + 9 + 3 + 5 + 6 + 3 + 3 + 8 + 9 + 6 + 3 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30486513 + ... + 34469408.

Almost surely, 2^{129356338963608} is an apocalyptic number.

129356338963608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

129356338963608 is an abundant number, since it is smaller than the sum of its proper divisors (241819987002552).

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

129356338963608 is a wasteful number, since it uses less digits than its factorization.

129356338963608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64957577 (or 64957570 counting only the distinct ones).

The product of its (nonzero) digits is 906992640, while the sum is 72.

The spelling of 129356338963608 in words is "one hundred twenty-nine trillion, three hundred fifty-six billion, three hundred thirty-eight million, nine hundred sixty-three thousand, six hundred eight".