397893875212 has 6 divisors (see below), whose sum is σ = 696314281628. Its totient is φ = 198946937604.

The previous prime is 397893875191. The next prime is 397893875231. The reversal of 397893875212 is 212578398793.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49736734398 + ... + 49736734405.

Almost surely, 2^397893875212 is an apocalyptic number.

It is an amenable number.

397893875212 is a deficient number, since it is larger than the sum of its proper divisors (298420406416).

397893875212 is a wasteful number, since it uses less digits than its factorization.

397893875212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99473468807 (or 99473468805 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The spelling of 397893875212 in words is "three hundred ninety-seven billion, eight hundred ninety-three million, eight hundred seventy-five thousand, two hundred twelve".