6371399052 has 72 divisors (see below), whose sum is σ = 16364917296. Its totient is φ = 2089795584.

The previous prime is 6371399039. The next prime is 6371399063. The reversal of 6371399052 is 2509931736.

6371399052 is a `hidden beast` number, since 637 + 1 + 3 + 9 + 9 + 0 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6371398989 and 6371399007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 763768 + ... + 772064.

It is an arithmetic number, because the mean of its divisors is an integer number (227290518).

Almost surely, 2^6371399052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6371399052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8182458648).

6371399052 is an abundant number, since it is smaller than the sum of its proper divisors (9993518244).

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

6371399052 is a wasteful number, since it uses less digits than its factorization.

6371399052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647 (or 8642 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 6371399052 is about 79821.0439170022. The cubic root of 6371399052 is about 1853.8656982833.

The spelling of 6371399052 in words is "six billion, three hundred seventy-one million, three hundred ninety-nine thousand, fifty-two".