78792705039 has 16 divisors (see below), whose sum is σ = 106614157824. Its totient is φ = 51750938400.

The previous prime is 78792705037. The next prime is 78792705059. The reversal of 78792705039 is 93050729787.

It is not a de Polignac number, because 78792705039 - 2¹ = 78792705037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78792705039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78792705037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160222 + ... + 428084.

It is an arithmetic number, because the mean of its divisors is an integer number (6663384864).

Almost surely, 2^78792705039 is an apocalyptic number.

78792705039 is a deficient number, since it is larger than the sum of its proper divisors (27821452785).

78792705039 is a wasteful number, since it uses less digits than its factorization.

78792705039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269318.

The product of its (nonzero) digits is 6667920, while the sum is 57.

The spelling of 78792705039 in words is "seventy-eight billion, seven hundred ninety-two million, seven hundred five thousand, thirty-nine".