6319381605 has 16 divisors (see below), whose sum is σ = 10143529344. Its totient is φ = 3359497280.

The previous prime is 6319381567. The next prime is 6319381631. The reversal of 6319381605 is 5061839136.

It is a happy number.

It is not a de Polignac number, because 6319381605 - 2¹² = 6319377509 is a prime.

It is a super-2 number, since 2×6319381605² = 79869167739224752050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672654 + ... + 681983.

It is an arithmetic number, because the mean of its divisors is an integer number (633970584).

Almost surely, 2^6319381605 is an apocalyptic number.

It is an amenable number.

6319381605 is a deficient number, since it is larger than the sum of its proper divisors (3824147739).

6319381605 is a wasteful number, since it uses less digits than its factorization.

6319381605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354956.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 6319381605 is about 79494.5382086090. The cubic root of 6319381605 is about 1848.8067888844.

The spelling of 6319381605 in words is "six billion, three hundred nineteen million, three hundred eighty-one thousand, six hundred five".