6115949279 has 4 divisors (see below), whose sum is σ = 6671944680. Its totient is φ = 5559953880.

The previous prime is 6115949267. The next prime is 6115949309. The reversal of 6115949279 is 9729495116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6115949279 - 2²⁰ = 6114900703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6115949279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115949209) 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, 277997684 + ... + 277997705.

It is an arithmetic number, because the mean of its divisors is an integer number (1667986170).

Almost surely, 2^6115949279 is an apocalyptic number.

6115949279 is a deficient number, since it is larger than the sum of its proper divisors (555995401).

6115949279 is a wasteful number, since it uses less digits than its factorization.

6115949279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555995400.

The product of its digits is 1224720, while the sum is 53.

The square root of 6115949279 is about 78204.5349004775. The cubic root of 6115949279 is about 1828.7512038119.

The spelling of 6115949279 in words is "six billion, one hundred fifteen million, nine hundred forty-nine thousand, two hundred seventy-nine".