85779265320 has 96 divisors (see below), whose sum is σ = 318608709120. Its totient is φ = 19606688640.

The previous prime is 85779265289. The next prime is 85779265337. The reversal of 85779265320 is 2356297758.

85779265320 is a `hidden beast` number, since 8 + 57 + 7 + 9 + 265 + 320 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17017176 + ... + 17022215.

It is an arithmetic number, because the mean of its divisors is an integer number (3318840720).

Almost surely, 2^85779265320 is an apocalyptic number.

It is an amenable number.

85779265320 is an abundant number, since it is smaller than the sum of its proper divisors (232829443800).

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

85779265320 is a wasteful number, since it uses less digits than its factorization.

85779265320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34039415 (or 34039408 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 85779265320 in words is "eighty-five billion, seven hundred seventy-nine million, two hundred sixty-five thousand, three hundred twenty".