86573281565881 has 8 divisors (see below), whose sum is σ = 94476590612928. Its totient is φ = 78675474306000.

The previous prime is 86573281565867. The next prime is 86573281565993. The reversal of 86573281565881 is 18856518237568.

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

It is not a de Polignac number, because 86573281565881 - 2¹¹ = 86573281563833 is a prime.

It is a super-2 number, since 2×86573281565881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86573281565821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1375413885 + ... + 1375476826.

It is an arithmetic number, because the mean of its divisors is an integer number (11809573826616).

Almost surely, 2^{86573281565881} is an apocalyptic number.

It is an amenable number.

86573281565881 is a deficient number, since it is larger than the sum of its proper divisors (7903309047047).

86573281565881 is a wasteful number, since it uses less digits than its factorization.

86573281565881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750893583.

The product of its digits is 774144000, while the sum is 73.

The spelling of 86573281565881 in words is "eighty-six trillion, five hundred seventy-three billion, two hundred eighty-one million, five hundred sixty-five thousand, eight hundred eighty-one".