8581127994879 has 32 divisors (see below), whose sum is σ = 12671179100160. Its totient is φ = 5121749080800.

The previous prime is 8581127994731. The next prime is 8581127994913. The reversal of 8581127994879 is 9784997211858.

It is not a de Polignac number, because 8581127994879 - 2²⁴ = 8581111217663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8581127994479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8169744 + ... + 9160074.

It is an arithmetic number, because the mean of its divisors is an integer number (395974346880).

Almost surely, 2^{8581127994879} is an apocalyptic number.

8581127994879 is a deficient number, since it is larger than the sum of its proper divisors (4090051105281).

8581127994879 is a wasteful number, since it uses less digits than its factorization.

8581127994879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994331.

The product of its digits is 731566080, while the sum is 78.

The spelling of 8581127994879 in words is "eight trillion, five hundred eighty-one billion, one hundred twenty-seven million, nine hundred ninety-four thousand, eight hundred seventy-nine".