40255456402172 has 96 divisors (see below), whose sum is σ = 78502106726400. Its totient is φ = 18058302250560.

The previous prime is 40255456402127. The next prime is 40255456402199. The reversal of 40255456402172 is 27120465455204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1004783813 + ... + 1004823875.

It is an arithmetic number, because the mean of its divisors is an integer number (817730278400).

Almost surely, 2^{40255456402172} is an apocalyptic number.

It is an amenable number.

40255456402172 is a deficient number, since it is larger than the sum of its proper divisors (38246650324228).

40255456402172 is a wasteful number, since it uses less digits than its factorization.

40255456402172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42568 (or 42544 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 47.

The spelling of 40255456402172 in words is "forty trillion, two hundred fifty-five billion, four hundred fifty-six million, four hundred two thousand, one hundred seventy-two".