86951717824 has 56 divisors (see below), whose sum is σ = 175903128000. Its totient is φ = 42637071360.

The previous prime is 86951717821. The next prime is 86951717851. The reversal of 86951717824 is 42871715968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86951717821) 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, 695634 + ... + 811054.

Almost surely, 2^86951717824 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 86951717824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87951564000).

86951717824 is an abundant number, since it is smaller than the sum of its proper divisors (88951410176).

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

86951717824 is a wasteful number, since it uses less digits than its factorization.

86951717824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115661 (or 115651 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 58.

The spelling of 86951717824 in words is "eighty-six billion, nine hundred fifty-one million, seven hundred seventeen thousand, eight hundred twenty-four".