129152978496 has 140 divisors (see below), whose sum is σ = 403000189680. Its totient is φ = 40785120000.

The previous prime is 129152978489. The next prime is 129152978497. The reversal of 129152978496 is 694879251921.

129152978496 is a `hidden beast` number, since 1 + 2 + 9 + 1 + 52 + 97 + 8 + 496 = 666.

It is not an unprimeable number, because it can be changed into a prime (129152978497) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 557130 + ... + 754121.

Almost surely, 2^129152978496 is an apocalyptic number.

129152978496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129152978496 is an abundant number, since it is smaller than the sum of its proper divisors (273847211184).

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

129152978496 is a wasteful number, since it uses less digits than its factorization.

129152978496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311294 (or 1311275 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 129152978496 in words is "one hundred twenty-nine billion, one hundred fifty-two million, nine hundred seventy-eight thousand, four hundred ninety-six".