6491274959 has 12 divisors (see below), whose sum is σ = 7031372400. Its totient is φ = 5989935744.

The previous prime is 6491274941. The next prime is 6491274971. The reversal of 6491274959 is 9594721946.

6491274959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6491274959 - 2¹⁶ = 6491209423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491274059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786647 + ... + 794855.

It is an arithmetic number, because the mean of its divisors is an integer number (585947700).

Almost surely, 2^6491274959 is an apocalyptic number.

6491274959 is a deficient number, since it is larger than the sum of its proper divisors (540097441).

6491274959 is a wasteful number, since it uses less digits than its factorization.

6491274959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914 (or 12901 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The square root of 6491274959 is about 80568.4489052632. The cubic root of 6491274959 is about 1865.4201708405.

The spelling of 6491274959 in words is "six billion, four hundred ninety-one million, two hundred seventy-four thousand, nine hundred fifty-nine".