85392400777 has 16 divisors (see below), whose sum is σ = 91849881600. Its totient is φ = 79133135760.

The previous prime is 85392400727. The next prime is 85392400787. The reversal of 85392400777 is 77700429358.

It is a cyclic number.

It is not a de Polignac number, because 85392400777 - 2³⁵ = 51032662409 is a prime.

It is a super-2 number, since 2×85392400777² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85392400727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652502 + ... + 1703392.

It is an arithmetic number, because the mean of its divisors is an integer number (5740617600).

Almost surely, 2^85392400777 is an apocalyptic number.

It is an amenable number.

85392400777 is a deficient number, since it is larger than the sum of its proper divisors (6457480823).

85392400777 is a wasteful number, since it uses less digits than its factorization.

85392400777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52836.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 85392400777 in words is "eighty-five billion, three hundred ninety-two million, four hundred thousand, seven hundred seventy-seven".