239957974812 has 96 divisors (see below), whose sum is σ = 583930626048. Its totient is φ = 76628160000.

The previous prime is 239957974807. The next prime is 239957974819. The reversal of 239957974812 is 218479759932.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239957974819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18931237 + ... + 18943907.

It is an arithmetic number, because the mean of its divisors is an integer number (6082610688).

Almost surely, 2^239957974812 is an apocalyptic number.

It is an amenable number.

239957974812 is an abundant number, since it is smaller than the sum of its proper divisors (343972651236).

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

239957974812 is a wasteful number, since it uses less digits than its factorization.

239957974812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13411 (or 13409 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 66.

The spelling of 239957974812 in words is "two hundred thirty-nine billion, nine hundred fifty-seven million, nine hundred seventy-four thousand, eight hundred twelve".