397834774908 has 24 divisors (see below), whose sum is σ = 928471850880. Its totient is φ = 132584347440.

The previous prime is 397834774891. The next prime is 397834774943. The reversal of 397834774908 is 809477438793.

It is a happy number.

It is a congruent number.

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, 3344638 + ... + 3461541.

It is an arithmetic number, because the mean of its divisors is an integer number (38686327120).

Almost surely, 2^397834774908 is an apocalyptic number.

It is an amenable number.

397834774908 is an abundant number, since it is smaller than the sum of its proper divisors (530637075972).

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

397834774908 is a wasteful number, since it uses less digits than its factorization.

397834774908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811057 (or 6811055 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 69.

The spelling of 397834774908 in words is "three hundred ninety-seven billion, eight hundred thirty-four million, seven hundred seventy-four thousand, nine hundred eight".