6479949511 has 8 divisors (see below), whose sum is σ = 7408432160. Its totient is φ = 5552160768.

The previous prime is 6479949503. The next prime is 6479949521. The reversal of 6479949511 is 1159499746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6479949511 - 2³ = 6479949503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479949521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153306 + ... + 190951.

It is an arithmetic number, because the mean of its divisors is an integer number (926054020).

Almost surely, 2^6479949511 is an apocalyptic number.

6479949511 is a deficient number, since it is larger than the sum of its proper divisors (928482649).

6479949511 is a wasteful number, since it uses less digits than its factorization.

6479949511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346953.

The product of its digits is 2449440, while the sum is 55.

The square root of 6479949511 is about 80498.1335870590. The cubic root of 6479949511 is about 1864.3346615517.

The spelling of 6479949511 in words is "six billion, four hundred seventy-nine million, nine hundred forty-nine thousand, five hundred eleven".