397962595584 has 180 divisors, whose sum is σ = 1195198176480. Its totient is φ = 131698897920.

The previous prime is 397962595571. The next prime is 397962595621. The reversal of 397962595584 is 485595269793.

It is a happy number.

397962595584 is a `hidden beast` number, since 3 + 9 + 7 + 9 + 62 + 5 + 9 + 558 + 4 = 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 19 ways as a sum of consecutive naturals, for example, 2813269 + ... + 2951339.

Almost surely, 2^397962595584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397962595584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597599088240).

397962595584 is an abundant number, since it is smaller than the sum of its proper divisors (797235580896).

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

397962595584 is a wasteful number, since it uses less digits than its factorization.

397962595584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138238 (or 138215 counting only the distinct ones).

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

The spelling of 397962595584 in words is "three hundred ninety-seven billion, nine hundred sixty-two million, five hundred ninety-five thousand, five hundred eighty-four".