401957955239832 has 96 divisors (see below), whose sum is σ = 1147196202609600. Its totient is φ = 126794141353152.

The previous prime is 401957955239809. The next prime is 401957955239881. The reversal of 401957955239832 is 238932559759104.

401957955239832 is a `hidden beast` number, since 4 + 0 + 1 + 9 + 5 + 7 + 9 + 5 + 523 + 98 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160737678 + ... + 163219229.

It is an arithmetic number, because the mean of its divisors is an integer number (11949960443850).

Almost surely, 2^{401957955239832} is an apocalyptic number.

It is an amenable number.

401957955239832 is an abundant number, since it is smaller than the sum of its proper divisors (745238247369768).

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

401957955239832 is a wasteful number, since it uses less digits than its factorization.

401957955239832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323957845 (or 323957838 counting only the distinct ones).

The product of its (nonzero) digits is 734832000, while the sum is 72.

The spelling of 401957955239832 in words is "four hundred one trillion, nine hundred fifty-seven billion, nine hundred fifty-five million, two hundred thirty-nine thousand, eight hundred thirty-two".