239690617242 has 16 divisors (see below), whose sum is σ = 495911622240. Its totient is φ = 77141807792.

The previous prime is 239690617211. The next prime is 239690617259. The reversal of 239690617242 is 242716096932.

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, 688765968 + ... + 688766315.

It is an arithmetic number, because the mean of its divisors is an integer number (30994476390).

Almost surely, 2^239690617242 is an apocalyptic number.

239690617242 is an abundant number, since it is smaller than the sum of its proper divisors (256221004998).

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

239690617242 is a wasteful number, since it uses less digits than its factorization.

239690617242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377532317.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 239690617242 in words is "two hundred thirty-nine billion, six hundred ninety million, six hundred seventeen thousand, two hundred forty-two".