6318874109 has 4 divisors (see below), whose sum is σ = 6690572604. Its totient is φ = 5947175616.

The previous prime is 6318874103. The next prime is 6318874127. The reversal of 6318874109 is 9014788136.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3706130884 + 2612743225 = 60878^2 + 51115^2 .

It is a cyclic number.

It is not a de Polignac number, because 6318874109 - 2⁸ = 6318873853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6318874103) 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, 185849222 + ... + 185849255.

It is an arithmetic number, because the mean of its divisors is an integer number (1672643151).

Almost surely, 2^6318874109 is an apocalyptic number.

It is an amenable number.

6318874109 is a deficient number, since it is larger than the sum of its proper divisors (371698495).

6318874109 is a wasteful number, since it uses less digits than its factorization.

6318874109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371698494.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 6318874109 is about 79491.3461264810. The cubic root of 6318874109 is about 1848.7572963219.

The spelling of 6318874109 in words is "six billion, three hundred eighteen million, eight hundred seventy-four thousand, one hundred nine".