6139144065 has 32 divisors (see below), whose sum is σ = 9935694720. Its totient is φ = 3236603904.

The previous prime is 6139144049. The next prime is 6139144069. The reversal of 6139144065 is 5604419316.

It is not a de Polignac number, because 6139144065 - 2⁴ = 6139144049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6139144069) 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, 1553422 + ... + 1557368.

It is an arithmetic number, because the mean of its divisors is an integer number (310490460).

Almost surely, 2^6139144065 is an apocalyptic number.

It is an amenable number.

6139144065 is a deficient number, since it is larger than the sum of its proper divisors (3796550655).

6139144065 is a wasteful number, since it uses less digits than its factorization.

6139144065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 6139144065 is about 78352.6902218424. The cubic root of 6139144065 is about 1831.0601385164.

The spelling of 6139144065 in words is "six billion, one hundred thirty-nine million, one hundred forty-four thousand, sixty-five".