239989791896 has 8 divisors (see below), whose sum is σ = 449980859820. Its totient is φ = 119994895944.

The previous prime is 239989791883. The next prime is 239989791907. The reversal of 239989791896 is 698197989932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 239989791896.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14999361986 + ... + 14999362001.

Almost surely, 2^239989791896 is an apocalyptic number.

It is an amenable number.

239989791896 is a deficient number, since it is larger than the sum of its proper divisors (209991067924).

239989791896 is a wasteful number, since it uses less digits than its factorization.

239989791896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29998723993 (or 29998723989 counting only the distinct ones).

The product of its digits is 952342272, while the sum is 80.

The spelling of 239989791896 in words is "two hundred thirty-nine billion, nine hundred eighty-nine million, seven hundred ninety-one thousand, eight hundred ninety-six".