839242723904 has 28 divisors (see below), whose sum is σ = 1793477842044. Its totient is φ = 387342795264.

The previous prime is 839242723883. The next prime is 839242723919. The reversal of 839242723904 is 409327242938.

It can be written as a sum of positive squares in 2 ways, for example, as 381617533504 + 457625190400 = 617752^2 + 676480^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 504351767 + ... + 504353430.

It is an arithmetic number, because the mean of its divisors is an integer number (64052780073).

Almost surely, 2^839242723904 is an apocalyptic number.

It is an amenable number.

839242723904 is an abundant number, since it is smaller than the sum of its proper divisors (954235118140).

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

839242723904 is a wasteful number, since it uses less digits than its factorization.

839242723904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008705222 (or 1008705212 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 839242723904 in words is "eight hundred thirty-nine billion, two hundred forty-two million, seven hundred twenty-three thousand, nine hundred four".