86774875651 has 4 divisors (see below), whose sum is σ = 86775925000. Its totient is φ = 86773826304.

The previous prime is 86774875643. The next prime is 86774875657. The reversal of 86774875651 is 15657847768.

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 86774875651 - 2³ = 86774875643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86774875657) 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, 388926 + ... + 569923.

It is an arithmetic number, because the mean of its divisors is an integer number (21693981250).

Almost surely, 2^86774875651 is an apocalyptic number.

86774875651 is a deficient number, since it is larger than the sum of its proper divisors (1049349).

86774875651 is an equidigital number, since it uses as much as digits as its factorization.

86774875651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049348.

The product of its digits is 79027200, while the sum is 64.

The spelling of 86774875651 in words is "eighty-six billion, seven hundred seventy-four million, eight hundred seventy-five thousand, six hundred fifty-one".