86812507519 has 8 divisors (see below), whose sum is σ = 89611381728. Its totient is φ = 84037453920.

The previous prime is 86812507493. The next prime is 86812507531. The reversal of 86812507519 is 91570521868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86812507519 - 2⁹ = 86812507007 is a prime.

It is a super-2 number, since 2×86812507519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86812507549) 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, 5947747 + ... + 5962324.

It is an arithmetic number, because the mean of its divisors is an integer number (11201422716).

Almost surely, 2^86812507519 is an apocalyptic number.

86812507519 is a deficient number, since it is larger than the sum of its proper divisors (2798874209).

86812507519 is a wasteful number, since it uses less digits than its factorization.

86812507519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11910305.

The product of its (nonzero) digits is 1209600, while the sum is 52.

The spelling of 86812507519 in words is "eighty-six billion, eight hundred twelve million, five hundred seven thousand, five hundred nineteen".