32013129978 has 24 divisors (see below), whose sum is σ = 69891266016. Its totient is φ = 10589584200.

The previous prime is 32013129919. The next prime is 32013129997. The reversal of 32013129978 is 87992131023.

32013129978 is a `hidden beast` number, since 320 + 1 + 31 + 299 + 7 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6785838 + ... + 6790553.

It is an arithmetic number, because the mean of its divisors is an integer number (2912136084).

Almost surely, 2^32013129978 is an apocalyptic number.

32013129978 is an abundant number, since it is smaller than the sum of its proper divisors (37878136038).

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

32013129978 is a wasteful number, since it uses less digits than its factorization.

32013129978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13576530 (or 13576527 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 32013129978 in words is "thirty-two billion, thirteen million, one hundred twenty-nine thousand, nine hundred seventy-eight".