85979028580 has 24 divisors (see below), whose sum is σ = 181463284800. Its totient is φ = 34218787680.

The previous prime is 85979028571. The next prime is 85979028587. The reversal of 85979028580 is 8582097958.

It is not an unprimeable number, because it can be changed into a prime (85979028587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10797406 + ... + 10805365.

It is an arithmetic number, because the mean of its divisors is an integer number (7560970200).

Almost surely, 2^85979028580 is an apocalyptic number.

It is an amenable number.

85979028580 is an abundant number, since it is smaller than the sum of its proper divisors (95484256220).

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

85979028580 is a wasteful number, since it uses less digits than its factorization.

85979028580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21602979 (or 21602977 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 61.

The spelling of 85979028580 in words is "eighty-five billion, nine hundred seventy-nine million, twenty-eight thousand, five hundred eighty".