239699409664 has 72 divisors (see below), whose sum is σ = 562109868432. Its totient is φ = 100573163520.

The previous prime is 239699409647. The next prime is 239699409671. The reversal of 239699409664 is 466904996932.

It is a self number, because there is not a number n which added to its sum of digits gives 239699409664.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3237259 + ... + 3310474.

It is an arithmetic number, because the mean of its divisors is an integer number (7807081506).

Almost surely, 2^239699409664 is an apocalyptic number.

It is an amenable number.

239699409664 is an abundant number, since it is smaller than the sum of its proper divisors (322410458768).

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

239699409664 is a wasteful number, since it uses less digits than its factorization.

239699409664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547773 (or 6547759 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 67.

The spelling of 239699409664 in words is "two hundred thirty-nine billion, six hundred ninety-nine million, four hundred nine thousand, six hundred sixty-four".