790856616139 has 4 divisors (see below), whose sum is σ = 790879400856. Its totient is φ = 790833831424.

The previous prime is 790856616107. The next prime is 790856616161. The reversal of 790856616139 is 931616658097.

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

It is a cyclic number.

It is not a de Polignac number, because 790856616139 - 2⁵ = 790856616107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790856616239) 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, 11340214 + ... + 11409739.

It is an arithmetic number, because the mean of its divisors is an integer number (197719850214).

Almost surely, 2^790856616139 is an apocalyptic number.

790856616139 is a deficient number, since it is larger than the sum of its proper divisors (22784717).

790856616139 is a wasteful number, since it uses less digits than its factorization.

790856616139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22784716.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 790856616139 in words is "seven hundred ninety billion, eight hundred fifty-six million, six hundred sixteen thousand, one hundred thirty-nine".