129935125296 has 40 divisors (see below), whose sum is σ = 372961934960. Its totient is φ = 43311708288.

The previous prime is 129935125273. The next prime is 129935125303. The reversal of 129935125296 is 692521539921.

129935125296 is a `hidden beast` number, since 1 + 29 + 93 + 5 + 1 + 2 + 529 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 150387445 + ... + 150388308.

It is an arithmetic number, because the mean of its divisors is an integer number (9324048374).

Almost surely, 2^129935125296 is an apocalyptic number.

129935125296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129935125296 is an abundant number, since it is smaller than the sum of its proper divisors (243026809664).

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

129935125296 is a wasteful number, since it uses less digits than its factorization.

129935125296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300775770 (or 300775758 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 54.

The spelling of 129935125296 in words is "one hundred twenty-nine billion, nine hundred thirty-five million, one hundred twenty-five thousand, two hundred ninety-six".