85177993468 has 24 divisors (see below), whose sum is σ = 159456935232. Its totient is φ = 39670523904.

The previous prime is 85177993441. The next prime is 85177993487. The reversal of 85177993468 is 86439977158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6450196 + ... + 6463387.

It is an arithmetic number, because the mean of its divisors is an integer number (6644038968).

Almost surely, 2^85177993468 is an apocalyptic number.

It is an amenable number.

85177993468 is a deficient number, since it is larger than the sum of its proper divisors (74278941764).

85177993468 is a wasteful number, since it uses less digits than its factorization.

85177993468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12913701 (or 12913699 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 67.

The spelling of 85177993468 in words is "eighty-five billion, one hundred seventy-seven million, nine hundred ninety-three thousand, four hundred sixty-eight".