1308656804939 has 4 divisors (see below), whose sum is σ = 1427625605400. Its totient is φ = 1189688004480.

The previous prime is 1308656804857. The next prime is 1308656804941. The reversal of 1308656804939 is 9394086568031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1308656804939 is a prime.

It is a super-2 number, since 2×1308656804939² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308656803939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59484400214 + ... + 59484400235.

It is an arithmetic number, because the mean of its divisors is an integer number (356906401350).

Almost surely, 2^{1308656804939} is an apocalyptic number.

1308656804939 is a deficient number, since it is larger than the sum of its proper divisors (118968800461).

1308656804939 is a wasteful number, since it uses less digits than its factorization.

1308656804939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118968800460.

The product of its (nonzero) digits is 33592320, while the sum is 62.

The spelling of 1308656804939 in words is "one trillion, three hundred eight billion, six hundred fifty-six million, eight hundred four thousand, nine hundred thirty-nine".