239978830680 has 128 divisors (see below), whose sum is σ = 807696115200. Its totient is φ = 63373021056.

The previous prime is 239978830657. The next prime is 239978830711. The reversal of 239978830680 is 86038879932.

239978830680 is a `hidden beast` number, since 239 + 97 + 8 + 8 + 306 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 967414 + ... + 1189893.

It is an arithmetic number, because the mean of its divisors is an integer number (6310125900).

Almost surely, 2^239978830680 is an apocalyptic number.

239978830680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239978830680 is an abundant number, since it is smaller than the sum of its proper divisors (567717284520).

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

239978830680 is a wasteful number, since it uses less digits than its factorization.

239978830680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157430 (or 2157420 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 239978830680 in words is "two hundred thirty-nine billion, nine hundred seventy-eight million, eight hundred thirty thousand, six hundred eighty".