86573557580015 has 128 divisors (see below), whose sum is σ = 116374716057600. Its totient is φ = 61303923671040.

The previous prime is 86573557580009. The next prime is 86573557580053. The reversal of 86573557580015 is 51008575537568.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-86573557580015 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 68763746456 + ... + 68763747714.

It is an arithmetic number, because the mean of its divisors is an integer number (909177469200).

Almost surely, 2^{86573557580015} is an apocalyptic number.

86573557580015 is a deficient number, since it is larger than the sum of its proper divisors (29801158477585).

86573557580015 is a wasteful number, since it uses less digits than its factorization.

86573557580015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257.

The product of its (nonzero) digits is 176400000, while the sum is 65.

The spelling of 86573557580015 in words is "eighty-six trillion, five hundred seventy-three billion, five hundred fifty-seven million, five hundred eighty thousand, fifteen".