394564361902 has 32 divisors (see below), whose sum is σ = 626450485248. Its totient is φ = 186079800000.

The previous prime is 394564361839. The next prime is 394564361951. The reversal of 394564361902 is 209163465493.

It is a self number, because there is not a number n which added to its sum of digits gives 394564361902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545527 + ... + 2696077.

It is an arithmetic number, because the mean of its divisors is an integer number (19576577664).

Almost surely, 2^394564361902 is an apocalyptic number.

394564361902 is a deficient number, since it is larger than the sum of its proper divisors (231886123346).

394564361902 is a wasteful number, since it uses less digits than its factorization.

394564361902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151656.

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 394564361902 in words is "three hundred ninety-four billion, five hundred sixty-four million, three hundred sixty-one thousand, nine hundred two".