394657932086 has 8 divisors (see below), whose sum is σ = 645803888904. Its totient is φ = 179389969120.

The previous prime is 394657932077. The next prime is 394657932091. The reversal of 394657932086 is 680239756493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×394657932086² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8969498435 + ... + 8969498478.

It is an arithmetic number, because the mean of its divisors is an integer number (80725486113).

Almost surely, 2^394657932086 is an apocalyptic number.

394657932086 is a deficient number, since it is larger than the sum of its proper divisors (251145956818).

394657932086 is a wasteful number, since it uses less digits than its factorization.

394657932086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17938996926.

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 394657932086 in words is "three hundred ninety-four billion, six hundred fifty-seven million, nine hundred thirty-two thousand, eighty-six".