6115921172 has 12 divisors (see below), whose sum is σ = 11266170720. Its totient is φ = 2897015256.

The previous prime is 6115921159. The next prime is 6115921177. The reversal of 6115921172 is 2711295116.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115921177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40236248 + ... + 40236399.

It is an arithmetic number, because the mean of its divisors is an integer number (938847560).

Almost surely, 2^6115921172 is an apocalyptic number.

It is an amenable number.

6115921172 is a deficient number, since it is larger than the sum of its proper divisors (5150249548).

6115921172 is a wasteful number, since it uses less digits than its factorization.

6115921172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80472670 (or 80472668 counting only the distinct ones).

The product of its digits is 7560, while the sum is 35.

The square root of 6115921172 is about 78204.3551984159. The cubic root of 6115921172 is about 1828.7484023504.

The spelling of 6115921172 in words is "six billion, one hundred fifteen million, nine hundred twenty-one thousand, one hundred seventy-two".