399962497088 has 56 divisors (see below), whose sum is σ = 989517618624. Its totient is φ = 155829542400.

The previous prime is 399962497069. The next prime is 399962497199. The reversal of 399962497088 is 880794269993.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40575683 + ... + 40585538.

Almost surely, 2^399962497088 is an apocalyptic number.

It is an amenable number.

399962497088 is an abundant number, since it is smaller than the sum of its proper divisors (589555121536).

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

399962497088 is a wasteful number, since it uses less digits than its factorization.

399962497088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81161251 (or 81161241 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 74.

The spelling of 399962497088 in words is "three hundred ninety-nine billion, nine hundred sixty-two million, four hundred ninety-seven thousand, eighty-eight".