397393609234752 has 672 divisors, whose sum is σ = 1282409075211264. Its totient is φ = 116829477273600.

The previous prime is 397393609234717. The next prime is 397393609234789. The reversal of 397393609234752 is 257432906393793.

397393609234752 is a `hidden beast` number, since 3 + 9 + 7 + 3 + 9 + 3 + 60 + 92 + 3 + 475 + 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 95 ways as a sum of consecutive naturals, for example, 5990494128 + ... + 5990560464.

It is an arithmetic number, because the mean of its divisors is an integer number (1908346838112).

Almost surely, 2^{397393609234752} is an apocalyptic number.

397393609234752 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397393609234752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641204537605632).

397393609234752 is an abundant number, since it is smaller than the sum of its proper divisors (885015465976512).

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

397393609234752 is a wasteful number, since it uses less digits than its factorization.

397393609234752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66727 (or 66714 counting only the distinct ones).

The product of its (nonzero) digits is 1388832480, while the sum is 72.

The spelling of 397393609234752 in words is "three hundred ninety-seven trillion, three hundred ninety-three billion, six hundred nine million, two hundred thirty-four thousand, seven hundred fifty-two".