397425791756 has 36 divisors (see below), whose sum is σ = 814950857448. Its totient is φ = 169082077248.

The previous prime is 397425791753. The next prime is 397425791779. The reversal of 397425791756 is 657197524793.

It is a junction number, because it is equal to n+sod(n) for n = 397425791692 and 397425791701.

It is not an unprimeable number, because it can be changed into a prime (397425791753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7373450 + ... + 7427153.

It is an arithmetic number, because the mean of its divisors is an integer number (22637523818).

Almost surely, 2^397425791756 is an apocalyptic number.

It is an amenable number.

397425791756 is an abundant number, since it is smaller than the sum of its proper divisors (417525065692).

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

397425791756 is a wasteful number, since it uses less digits than its factorization.

397425791756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800758 (or 14800749 counting only the distinct ones).

The product of its digits is 100018800, while the sum is 65.

The spelling of 397425791756 in words is "three hundred ninety-seven billion, four hundred twenty-five million, seven hundred ninety-one thousand, seven hundred fifty-six".