86955316681 has 4 divisors (see below), whose sum is σ = 88977533392. Its totient is φ = 84933099972.

The previous prime is 86955316661. The next prime is 86955316699. The reversal of 86955316681 is 18661355968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86955316681 is a prime.

It is a super-2 number, since 2×86955316681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86955316661) 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, 1011108291 + ... + 1011108376.

It is an arithmetic number, because the mean of its divisors is an integer number (22244383348).

Almost surely, 2^86955316681 is an apocalyptic number.

It is an amenable number.

86955316681 is a deficient number, since it is larger than the sum of its proper divisors (2022216711).

86955316681 is a wasteful number, since it uses less digits than its factorization.

86955316681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022216710.

The product of its digits is 9331200, while the sum is 58.

The spelling of 86955316681 in words is "eighty-six billion, nine hundred fifty-five million, three hundred sixteen thousand, six hundred eighty-one".