85418773765 has 32 divisors (see below), whose sum is σ = 119945548800. Its totient is φ = 57830837760.

The previous prime is 85418773747. The next prime is 85418773819. The reversal of 85418773765 is 56737781458.

It is not a de Polignac number, because 85418773765 - 2³¹ = 83271290117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1077280 + ... + 1153849.

It is an arithmetic number, because the mean of its divisors is an integer number (3748298400).

Almost surely, 2^85418773765 is an apocalyptic number.

It is an amenable number.

85418773765 is a deficient number, since it is larger than the sum of its proper divisors (34526775035).

85418773765 is a wasteful number, since it uses less digits than its factorization.

85418773765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231197.

The product of its digits is 39513600, while the sum is 61.

The spelling of 85418773765 in words is "eighty-five billion, four hundred eighteen million, seven hundred seventy-three thousand, seven hundred sixty-five".