32640400502 has 16 divisors (see below), whose sum is σ = 49649069232. Its totient is φ = 16090871040.

The previous prime is 32640400477. The next prime is 32640400517. The reversal of 32640400502 is 20500404623.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384377 + ... + 461547.

It is an arithmetic number, because the mean of its divisors is an integer number (3103066827).

Almost surely, 2^32640400502 is an apocalyptic number.

32640400502 is a deficient number, since it is larger than the sum of its proper divisors (17008668730).

32640400502 is a wasteful number, since it uses less digits than its factorization.

32640400502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80143.

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 32640400502 in words is "thirty-two billion, six hundred forty million, four hundred thousand, five hundred two".