85887179712 has 168 divisors, whose sum is σ = 255519352816. Its totient is φ = 28604233728.

The previous prime is 85887179711. The next prime is 85887179717. The reversal of 85887179712 is 21797178858.

It is a self number, because there is not a number n which added to its sum of digits gives 85887179712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85887179711) 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, 30060588 + ... + 30063444.

Almost surely, 2^85887179712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85887179712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127759676408).

85887179712 is an abundant number, since it is smaller than the sum of its proper divisors (169632173104).

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

85887179712 is a wasteful number, since it uses less digits than its factorization.

85887179712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817 (or 4795 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 63.

The spelling of 85887179712 in words is "eighty-five billion, eight hundred eighty-seven million, one hundred seventy-nine thousand, seven hundred twelve".