86311788651 has 16 divisors (see below), whose sum is σ = 139493800320. Its totient is φ = 52310174760.

The previous prime is 86311788643. The next prime is 86311788671. The reversal of 86311788651 is 15688711368.

It is not a de Polignac number, because 86311788651 - 2³ = 86311788643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86311788611) 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, 145305745 + ... + 145306338.

It is an arithmetic number, because the mean of its divisors is an integer number (8718362520).

Almost surely, 2^86311788651 is an apocalyptic number.

86311788651 is a deficient number, since it is larger than the sum of its proper divisors (53182011669).

86311788651 is a wasteful number, since it uses less digits than its factorization.

86311788651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290612103 (or 290612097 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The spelling of 86311788651 in words is "eighty-six billion, three hundred eleven million, seven hundred eighty-eight thousand, six hundred fifty-one".