86181730023 has 4 divisors (see below), whose sum is σ = 114908973368. Its totient is φ = 57454486680.

The previous prime is 86181730021. The next prime is 86181730049. The reversal of 86181730023 is 32003718168.

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

It is not a de Polignac number, because 86181730023 - 2¹ = 86181730021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181730021) 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, 14363621668 + ... + 14363621673.

It is an arithmetic number, because the mean of its divisors is an integer number (28727243342).

Almost surely, 2^86181730023 is an apocalyptic number.

86181730023 is a deficient number, since it is larger than the sum of its proper divisors (28727243345).

86181730023 is a wasteful number, since it uses less digits than its factorization.

86181730023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28727243344.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 86181730023 in words is "eighty-six billion, one hundred eighty-one million, seven hundred thirty thousand, twenty-three".