6494539879 has 16 divisors (see below), whose sum is σ = 6754144320. Its totient is φ = 6237423360.

The previous prime is 6494539867. The next prime is 6494539913. The reversal of 6494539879 is 9789354946.

It is a cyclic number.

It is not a de Polignac number, because 6494539879 - 2¹⁵ = 6494507111 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 6494539879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494539819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6109102 + ... + 6110164.

It is an arithmetic number, because the mean of its divisors is an integer number (422134020).

Almost surely, 2^6494539879 is an apocalyptic number.

6494539879 is a deficient number, since it is larger than the sum of its proper divisors (259604441).

6494539879 is a wasteful number, since it uses less digits than its factorization.

6494539879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010.

The product of its digits is 58786560, while the sum is 64.

The square root of 6494539879 is about 80588.7081358176. The cubic root of 6494539879 is about 1865.7328688771.

The spelling of 6494539879 in words is "six billion, four hundred ninety-four million, five hundred thirty-nine thousand, eight hundred seventy-nine".