392638128966 has 12 divisors (see below), whose sum is σ = 850715946132. Its totient is φ = 130879376316.

The previous prime is 392638128913. The next prime is 392638128973. The reversal of 392638128966 is 669821836293.

392638128966 is a `hidden beast` number, since 39 + 263 + 8 + 1 + 289 + 66 = 666.

It is a congruent number.

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, 10906614676 + ... + 10906614711.

It is an arithmetic number, because the mean of its divisors is an integer number (70892995511).

Almost surely, 2^392638128966 is an apocalyptic number.

392638128966 is an abundant number, since it is smaller than the sum of its proper divisors (458077817166).

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

392638128966 is a wasteful number, since it uses less digits than its factorization.

392638128966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21813229395 (or 21813229392 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 392638128966 in words is "three hundred ninety-two billion, six hundred thirty-eight million, one hundred twenty-eight thousand, nine hundred sixty-six".