86681495918 has 8 divisors (see below), whose sum is σ = 130024487520. Its totient is φ = 43340000080.

The previous prime is 86681495917. The next prime is 86681496007. The reversal of 86681495918 is 81959418668.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86681495917) 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, 215663 + ... + 468906.

It is an arithmetic number, because the mean of its divisors is an integer number (16253060940).

Almost surely, 2^86681495918 is an apocalyptic number.

86681495918 is a deficient number, since it is larger than the sum of its proper divisors (43342991602).

86681495918 is a wasteful number, since it uses less digits than its factorization.

86681495918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747882.

The product of its digits is 29859840, while the sum is 65.

The spelling of 86681495918 in words is "eighty-six billion, six hundred eighty-one million, four hundred ninety-five thousand, nine hundred eighteen".