397259978304 has 168 divisors, whose sum is σ = 1226327138400. Its totient is φ = 113165144064.

The previous prime is 397259978293. The next prime is 397259978329. The reversal of 397259978304 is 403879952793.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3107847 + ... + 3233145.

It is an arithmetic number, because the mean of its divisors is an integer number (7299566300).

Almost surely, 2^397259978304 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 397259978304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613163569200).

397259978304 is an abundant number, since it is smaller than the sum of its proper divisors (829067160096).

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

397259978304 is a wasteful number, since it uses less digits than its factorization.

397259978304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125665 (or 125648 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 66.

The spelling of 397259978304 in words is "three hundred ninety-seven billion, two hundred fifty-nine million, nine hundred seventy-eight thousand, three hundred four".