6321423564 has 36 divisors (see below), whose sum is σ = 15994928040. Its totient is φ = 2105061120.

The previous prime is 6321423541. The next prime is 6321423571. The reversal of 6321423564 is 4653241236.

6321423564 is a `hidden beast` number, since 63 + 2 + 14 + 23 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49477 + ... + 122844.

Almost surely, 2^6321423564 is an apocalyptic number.

It is an amenable number.

6321423564 is an abundant number, since it is smaller than the sum of its proper divisors (9673504476).

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

6321423564 is a wasteful number, since it uses less digits than its factorization.

6321423564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173350 (or 173345 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 6321423564 is about 79507.3805630647. The cubic root of 6321423564 is about 1849.0059001978.

The spelling of 6321423564 in words is "six billion, three hundred twenty-one million, four hundred twenty-three thousand, five hundred sixty-four".