86717322720 has 216 divisors, whose sum is σ = 344237080824. Its totient is φ = 19821086208.

The previous prime is 86717322707. The next prime is 86717322737. The reversal of 86717322720 is 2722371768.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 543934 + ... + 685053.

It is an arithmetic number, because the mean of its divisors is an integer number (1593690189).

Almost surely, 2^86717322720 is an apocalyptic number.

86717322720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86717322720 is an abundant number, since it is smaller than the sum of its proper divisors (257519758104).

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

86717322720 is a wasteful number, since it uses less digits than its factorization.

86717322720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229022 (or 1229004 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 86717322720 in words is "eighty-six billion, seven hundred seventeen million, three hundred twenty-two thousand, seven hundred twenty".