6475521117 has 12 divisors (see below), whose sum is σ = 9349273824. Its totient is φ = 3984935760.

The previous prime is 6475521089. The next prime is 6475521121. The reversal of 6475521117 is 7111255746.

It is not a de Polignac number, because 6475521117 - 2²⁰ = 6474472541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6475521167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6385609 + ... + 6386622.

It is an arithmetic number, because the mean of its divisors is an integer number (779106152).

Almost surely, 2^6475521117 is an apocalyptic number.

It is an amenable number.

6475521117 is a deficient number, since it is larger than the sum of its proper divisors (2873752707).

6475521117 is a wasteful number, since it uses less digits than its factorization.

6475521117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12772260 (or 12772247 counting only the distinct ones).

The product of its digits is 58800, while the sum is 39.

The square root of 6475521117 is about 80470.6226954906. The cubic root of 6475521117 is about 1863.9098696688.

The spelling of 6475521117 in words is "six billion, four hundred seventy-five million, five hundred twenty-one thousand, one hundred seventeen".