8111253408 has 24 divisors (see below), whose sum is σ = 21292040448. Its totient is φ = 2703751104.

The previous prime is 8111253383. The next prime is 8111253413. The reversal of 8111253408 is 8043521118.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×8111253408² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42246016 + ... + 42246207.

It is an arithmetic number, because the mean of its divisors is an integer number (887168352).

Almost surely, 2^8111253408 is an apocalyptic number.

It is an amenable number.

8111253408 is an abundant number, since it is smaller than the sum of its proper divisors (13180787040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8111253408 is a wasteful number, since it uses less digits than its factorization.

8111253408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84492236 (or 84492228 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 8111253408 is about 90062.4972338653. The cubic root of 8111253408 is about 2009.2284695136.

The spelling of 8111253408 in words is "eight billion, one hundred eleven million, two hundred fifty-three thousand, four hundred eight".