6445596372 has 24 divisors (see below), whose sum is σ = 15048655776. Its totient is φ = 2147256288.

The previous prime is 6445596371. The next prime is 6445596379. The reversal of 6445596372 is 2736955446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445596371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138318 + ... + 178949.

It is an arithmetic number, because the mean of its divisors is an integer number (627027324).

Almost surely, 2^6445596372 is an apocalyptic number.

It is an amenable number.

6445596372 is an abundant number, since it is smaller than the sum of its proper divisors (8603059404).

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

6445596372 is a wasteful number, since it uses less digits than its factorization.

6445596372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318967 (or 318965 counting only the distinct ones).

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

The square root of 6445596372 is about 80284.4715496091. The cubic root of 6445596372 is about 1861.0342623401.

The spelling of 6445596372 in words is "six billion, four hundred forty-five million, five hundred ninety-six thousand, three hundred seventy-two".