6479423556 has 12 divisors (see below), whose sum is σ = 15118654992. Its totient is φ = 2159807848.

The previous prime is 6479423549. The next prime is 6479423569. The reversal of 6479423556 is 6553249746.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6479423499 and 6479423508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269975970 + ... + 269975993.

It is an arithmetic number, because the mean of its divisors is an integer number (1259887916).

Almost surely, 2^6479423556 is an apocalyptic number.

It is an amenable number.

6479423556 is an abundant number, since it is smaller than the sum of its proper divisors (8639231436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6479423556 is a wasteful number, since it uses less digits than its factorization.

6479423556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539951970 (or 539951968 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The square root of 6479423556 is about 80494.8666437805. The cubic root of 6479423556 is about 1864.2842196634.

The spelling of 6479423556 in words is "six billion, four hundred seventy-nine million, four hundred twenty-three thousand, five hundred fifty-six".