85718437023 has 4 divisors (see below), whose sum is σ = 114291249368. Its totient is φ = 57145624680.

The previous prime is 85718436997. The next prime is 85718437069. The reversal of 85718437023 is 32073481758.

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

It is not a de Polignac number, because 85718437023 - 2¹² = 85718432927 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 (85718437093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14286406168 + ... + 14286406173.

It is an arithmetic number, because the mean of its divisors is an integer number (28572812342).

Almost surely, 2^85718437023 is an apocalyptic number.

85718437023 is a deficient number, since it is larger than the sum of its proper divisors (28572812345).

85718437023 is a wasteful number, since it uses less digits than its factorization.

85718437023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28572812344.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 85718437023 in words is "eighty-five billion, seven hundred eighteen million, four hundred thirty-seven thousand, twenty-three".