397694165994 has 24 divisors (see below), whose sum is σ = 861806275200. Its totient is φ = 132543863208.

The previous prime is 397694165989. The next prime is 397694166061. The reversal of 397694165994 is 499561496793.

397694165994 is a `hidden beast` number, since 3 + 9 + 76 + 9 + 416 + 59 + 94 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1620444 + ... + 1849655.

It is an arithmetic number, because the mean of its divisors is an integer number (35908594800).

Almost surely, 2^397694165994 is an apocalyptic number.

397694165994 is an abundant number, since it is smaller than the sum of its proper divisors (464112109206).

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

397694165994 is a wasteful number, since it uses less digits than its factorization.

397694165994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476474 (or 3476471 counting only the distinct ones).

The product of its digits is 396809280, while the sum is 72.

The spelling of 397694165994 in words is "three hundred ninety-seven billion, six hundred ninety-four million, one hundred sixty-five thousand, nine hundred ninety-four".