86514802081 has 4 divisors (see below), whose sum is σ = 86519772592. Its totient is φ = 86509831572.

The previous prime is 86514802067. The next prime is 86514802093. The reversal of 86514802081 is 18020841568.

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 not a de Polignac number, because 86514802081 - 2²³ = 86506413473 is a prime.

It is a super-2 number, since 2×86514802081² (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 (86514802061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459055 + ... + 2493988.

It is an arithmetic number, because the mean of its divisors is an integer number (21629943148).

Almost surely, 2^86514802081 is an apocalyptic number.

It is an amenable number.

86514802081 is a deficient number, since it is larger than the sum of its proper divisors (4970511).

86514802081 is a wasteful number, since it uses less digits than its factorization.

86514802081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970510.

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 86514802081 in words is "eighty-six billion, five hundred fourteen million, eight hundred two thousand, eighty-one".