86415240591 has 48 divisors (see below), whose sum is σ = 129975431040. Its totient is φ = 55277380800.

The previous prime is 86415240529. The next prime is 86415240601. The reversal of 86415240591 is 19504251468.

86415240591 is a `hidden beast` number, since 8 + 6 + 4 + 1 + 52 + 4 + 0 + 591 = 666.

It is not a de Polignac number, because 86415240591 - 2¹⁹ = 86414716303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86415240391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17106016 + ... + 17111066.

It is an arithmetic number, because the mean of its divisors is an integer number (2707821480).

Almost surely, 2^86415240591 is an apocalyptic number.

86415240591 is a deficient number, since it is larger than the sum of its proper divisors (43560190449).

86415240591 is a wasteful number, since it uses less digits than its factorization.

86415240591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5796 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 86415240591 in words is "eighty-six billion, four hundred fifteen million, two hundred forty thousand, five hundred ninety-one".