397993625888 has 48 divisors (see below), whose sum is σ = 798535769976. Its totient is φ = 195192791040.

The previous prime is 397993625839. The next prime is 397993625923. The reversal of 397993625888 is 888526399793.

It can be written as a sum of positive squares in 4 ways, for example, as 364250875024 + 33742750864 = 603532^2 + 183692^2 .

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, 7199120 + ... + 7254192.

Almost surely, 2^397993625888 is an apocalyptic number.

It is an amenable number.

397993625888 is an abundant number, since it is smaller than the sum of its proper divisors (400542144088).

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

397993625888 is a wasteful number, since it uses less digits than its factorization.

397993625888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59397 (or 59389 counting only the distinct ones).

The product of its digits is 1410877440, while the sum is 77.

The spelling of 397993625888 in words is "three hundred ninety-seven billion, nine hundred ninety-three million, six hundred twenty-five thousand, eight hundred eighty-eight".