3118381864 has 32 divisors (see below), whose sum is σ = 6299120520. Its totient is φ = 1438707456.

The previous prime is 3118381843. The next prime is 3118381873. The reversal of 3118381864 is 4681838113.

It can be written as a sum of positive squares in 4 ways, for example, as 2573532900 + 544848964 = 50730^2 + 23342^2 .

It is a super-2 number, since 2×3118381864² = 19448610899448228992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3118381864.

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 7 ways as a sum of consecutive naturals, for example, 428722 + ... + 435934.

Almost surely, 2^3118381864 is an apocalyptic number.

It is an amenable number.

3118381864 is an abundant number, since it is smaller than the sum of its proper divisors (3180738656).

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

3118381864 is a wasteful number, since it uses less digits than its factorization.

3118381864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11389 (or 11385 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 3118381864 is about 55842.4736558115. The cubic root of 3118381864 is about 1460.9760571556.

The spelling of 3118381864 in words is "three billion, one hundred eighteen million, three hundred eighty-one thousand, eight hundred sixty-four".