85191776925 has 24 divisors (see below), whose sum is σ = 140859719520. Its totient is φ = 45432609600.

The previous prime is 85191776921. The next prime is 85191776959. The reversal of 85191776925 is 52967719158.

It is not a de Polignac number, because 85191776925 - 2² = 85191776921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85191776921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1546506 + ... + 1600644.

It is an arithmetic number, because the mean of its divisors is an integer number (5869154980).

Almost surely, 2^85191776925 is an apocalyptic number.

It is an amenable number.

85191776925 is a deficient number, since it is larger than the sum of its proper divisors (55667942595).

85191776925 is a wasteful number, since it uses less digits than its factorization.

85191776925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75133 (or 75128 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 60.

The spelling of 85191776925 in words is "eighty-five billion, one hundred ninety-one million, seven hundred seventy-six thousand, nine hundred twenty-five".