397912494064 has 20 divisors (see below), whose sum is σ = 778588682760. Its totient is φ = 196986382400.

The previous prime is 397912494061. The next prime is 397912494073. The reversal of 397912494064 is 460494219793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397912494061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123114874 + ... + 123118105.

It is an arithmetic number, because the mean of its divisors is an integer number (38929434138).

Almost surely, 2^397912494064 is an apocalyptic number.

It is an amenable number.

397912494064 is a deficient number, since it is larger than the sum of its proper divisors (380676188696).

397912494064 is a wasteful number, since it uses less digits than its factorization.

397912494064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246233088 (or 246233082 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 397912494064 in words is "three hundred ninety-seven billion, nine hundred twelve million, four hundred ninety-four thousand, sixty-four".