6390315572 has 36 divisors (see below), whose sum is σ = 12235289220. Its totient is φ = 2910170880.

The previous prime is 6390315571. The next prime is 6390315587. The reversal of 6390315572 is 2755130936.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4181691556 + 2208624016 = 64666^2 + 46996^2 .

It is a super-2 number, since 2×6390315572² = 81672266219491374368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390315571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16454 + ... + 114242.

It is an arithmetic number, because the mean of its divisors is an integer number (339869145).

Almost surely, 2^6390315572 is an apocalyptic number.

6390315572 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6390315572 is a deficient number, since it is larger than the sum of its proper divisors (5844973648).

6390315572 is a wasteful number, since it uses less digits than its factorization.

6390315572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97872 (or 97839 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 6390315572 is about 79939.4494101629. The cubic root of 6390315572 is about 1855.6985787540.

The spelling of 6390315572 in words is "six billion, three hundred ninety million, three hundred fifteen thousand, five hundred seventy-two".