85577877558 has 12 divisors (see below), whose sum is σ = 185418734748. Its totient is φ = 28525959180.

The previous prime is 85577877547. The next prime is 85577877563.

85577877558 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2377163248 + ... + 2377163283.

It is an arithmetic number, because the mean of its divisors is an integer number (15451561229).

Almost surely, 2^85577877558 is an apocalyptic number.

85577877558 is an abundant number, since it is smaller than the sum of its proper divisors (99840857190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85577877558 is a wasteful number, since it uses less digits than its factorization.

85577877558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754326539 (or 4754326536 counting only the distinct ones).

The product of its digits is 768320000, while the sum is 72.

The spelling of 85577877558 in words is "eighty-five billion, five hundred seventy-seven million, eight hundred seventy-seven thousand, five hundred fifty-eight".