397658979306 has 12 divisors (see below), whose sum is σ = 861594455202. Its totient is φ = 132552993096.

The previous prime is 397658979281. The next prime is 397658979323. The reversal of 397658979306 is 603979856793.

397658979306 is a `hidden beast` number, since 3 + 9 + 7 + 6 + 589 + 7 + 9 + 30 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 392583699225 + 5075280081 = 626565^2 + 71241^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11046082741 + ... + 11046082776.

Almost surely, 2^397658979306 is an apocalyptic number.

397658979306 is an abundant number, since it is smaller than the sum of its proper divisors (463935475896).

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

397658979306 is a wasteful number, since it uses less digits than its factorization.

397658979306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22092165525 (or 22092165522 counting only the distinct ones).

The product of its (nonzero) digits is 462944160, while the sum is 72.

The spelling of 397658979306 in words is "three hundred ninety-seven billion, six hundred fifty-eight million, nine hundred seventy-nine thousand, three hundred six".