6490479456 has 84 divisors (see below), whose sum is σ = 19158501852. Its totient is φ = 2163485376.

The previous prime is 6490479449. The next prime is 6490479497. The reversal of 6490479456 is 6549740946.

It is a happy number.

6490479456 is a `hidden beast` number, since 64 + 90 + 47 + 9 + 456 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 115786 + ... + 162441.

It is an arithmetic number, because the mean of its divisors is an integer number (228077403).

Almost surely, 2^6490479456 is an apocalyptic number.

It is an amenable number.

6490479456 is an abundant number, since it is smaller than the sum of its proper divisors (12668022396).

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

6490479456 is an equidigital number, since it uses as much as digits as its factorization.

6490479456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278255 (or 278232 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6490479456 is about 80563.5119393389. The cubic root of 6490479456 is about 1865.3439655765.

It can be divided in two parts, 649047 and 9456, that added together give a cube (658503 = 87³).

The spelling of 6490479456 in words is "six billion, four hundred ninety million, four hundred seventy-nine thousand, four hundred fifty-six".