86790791751 has 4 divisors (see below), whose sum is σ = 115721055672. Its totient is φ = 57860527832.

The previous prime is 86790791723. The next prime is 86790791753. The reversal of 86790791751 is 15719709768.

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 86790791751 - 2⁵ = 86790791719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86790791753) 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, 14465131956 + ... + 14465131961.

It is an arithmetic number, because the mean of its divisors is an integer number (28930263918).

Almost surely, 2^86790791751 is an apocalyptic number.

86790791751 is a deficient number, since it is larger than the sum of its proper divisors (28930263921).

86790791751 is a wasteful number, since it uses less digits than its factorization.

86790791751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28930263920.

The product of its (nonzero) digits is 6667920, while the sum is 60.

The spelling of 86790791751 in words is "eighty-six billion, seven hundred ninety million, seven hundred ninety-one thousand, seven hundred fifty-one".