86760144431 has 4 divisors (see below), whose sum is σ = 87619155864. Its totient is φ = 85901133000.

The previous prime is 86760144413. The next prime is 86760144433. The reversal of 86760144431 is 13444106768.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86760144431 is a prime.

It is a super-2 number, since 2×86760144431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86760144433) 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, 429505565 + ... + 429505766.

It is an arithmetic number, because the mean of its divisors is an integer number (21904788966).

Almost surely, 2^86760144431 is an apocalyptic number.

86760144431 is a deficient number, since it is larger than the sum of its proper divisors (859011433).

86760144431 is a wasteful number, since it uses less digits than its factorization.

86760144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859011432.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 86760144431 in words is "eighty-six billion, seven hundred sixty million, one hundred forty-four thousand, four hundred thirty-one".