397605435825 has 24 divisors (see below), whose sum is σ = 707941577728. Its totient is φ = 195744214080.

The previous prime is 397605435817. The next prime is 397605435947. The reversal of 397605435825 is 528534506793.

It is not a de Polignac number, because 397605435825 - 2³ = 397605435817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203899249 + ... + 203901198.

Almost surely, 2^397605435825 is an apocalyptic number.

It is an amenable number.

397605435825 is a deficient number, since it is larger than the sum of its proper divisors (310336141903).

397605435825 is a wasteful number, since it uses less digits than its factorization.

397605435825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407800473 (or 407800468 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 57.

The spelling of 397605435825 in words is "three hundred ninety-seven billion, six hundred five million, four hundred thirty-five thousand, eight hundred twenty-five".