86571525708 has 120 divisors (see below), whose sum is σ = 232278908400. Its totient is φ = 28106445312.

The previous prime is 86571525659. The next prime is 86571525721. The reversal of 86571525708 is 80752517568.

86571525708 is a `hidden beast` number, since 8 + 6 + 57 + 15 + 2 + 570 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1909608 + ... + 1954416.

It is an arithmetic number, because the mean of its divisors is an integer number (1935657570).

Almost surely, 2^86571525708 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 86571525708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116139454200).

86571525708 is an abundant number, since it is smaller than the sum of its proper divisors (145707382692).

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

86571525708 is a wasteful number, since it uses less digits than its factorization.

86571525708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44981 (or 44970 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 54.

The spelling of 86571525708 in words is "eighty-six billion, five hundred seventy-one million, five hundred twenty-five thousand, seven hundred eight".