6472579421 has 16 divisors (see below), whose sum is σ = 8190159360. Its totient is φ = 4968287280.

The previous prime is 6472579411. The next prime is 6472579457. The reversal of 6472579421 is 1249752746.

It is not a de Polignac number, because 6472579421 - 2⁶ = 6472579357 is a prime.

It is a super-2 number, since 2×6472579421² = 83788568722305390482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6472579411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622151 + ... + 632468.

It is an arithmetic number, because the mean of its divisors is an integer number (511884960).

Almost surely, 2^6472579421 is an apocalyptic number.

It is an amenable number.

6472579421 is a deficient number, since it is larger than the sum of its proper divisors (1717579939).

6472579421 is a wasteful number, since it uses less digits than its factorization.

6472579421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254704.

The product of its digits is 846720, while the sum is 47.

The square root of 6472579421 is about 80452.3425451366. The cubic root of 6472579421 is about 1863.6275816182.

The spelling of 6472579421 in words is "six billion, four hundred seventy-two million, five hundred seventy-nine thousand, four hundred twenty-one".