86242015581 has 8 divisors (see below), whose sum is σ = 115023478944. Its totient is φ = 57477614640.

The previous prime is 86242015577. The next prime is 86242015583. The reversal of 86242015581 is 18551024268.

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

It is not a de Polignac number, because 86242015581 - 2² = 86242015577 is a prime.

It is a super-2 number, since 2×86242015581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86242015583) 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, 4253806 + ... + 4274031.

It is an arithmetic number, because the mean of its divisors is an integer number (14377934868).

Almost surely, 2^86242015581 is an apocalyptic number.

It is an amenable number.

86242015581 is a deficient number, since it is larger than the sum of its proper divisors (28781463363).

86242015581 is a wasteful number, since it uses less digits than its factorization.

86242015581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531211.

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 86242015581 in words is "eighty-six billion, two hundred forty-two million, fifteen thousand, five hundred eighty-one".