6315725819 has 4 divisors (see below), whose sum is σ = 6801550896. Its totient is φ = 5829900744.

The previous prime is 6315725807. The next prime is 6315725861. The reversal of 6315725819 is 9185275136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6315725819 is a prime.

It is a super-2 number, since 2×6315725819² = 79776785241566441522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6315725869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242912519 + ... + 242912544.

It is an arithmetic number, because the mean of its divisors is an integer number (1700387724).

Almost surely, 2^6315725819 is an apocalyptic number.

6315725819 is a deficient number, since it is larger than the sum of its proper divisors (485825077).

6315725819 is a wasteful number, since it uses less digits than its factorization.

6315725819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485825076.

The product of its digits is 453600, while the sum is 47.

The square root of 6315725819 is about 79471.5409376212. The cubic root of 6315725819 is about 1848.4502062231.

The spelling of 6315725819 in words is "six billion, three hundred fifteen million, seven hundred twenty-five thousand, eight hundred nineteen".