6494549915 has 12 divisors (see below), whose sum is σ = 9065861856. Its totient is φ = 4453405488.

The previous prime is 6494549851. The next prime is 6494549921. The reversal of 6494549915 is 5199454946.

It is not a de Polignac number, because 6494549915 - 2⁶ = 6494549851 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13253939 + ... + 13254428.

It is an arithmetic number, because the mean of its divisors is an integer number (755488488).

Almost surely, 2^6494549915 is an apocalyptic number.

6494549915 is a deficient number, since it is larger than the sum of its proper divisors (2571311941).

6494549915 is a wasteful number, since it uses less digits than its factorization.

6494549915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26508386 (or 26508379 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 56.

The square root of 6494549915 is about 80588.7704025815. The cubic root of 6494549915 is about 1865.7338299144.

The spelling of 6494549915 in words is "six billion, four hundred ninety-four million, five hundred forty-nine thousand, nine hundred fifteen".