7912133316 has 36 divisors (see below), whose sum is σ = 20019796524. Its totient is φ = 2634782400.

The previous prime is 7912133309. The next prime is 7912133323. The reversal of 7912133316 is 6133312197.

It is an interprime number because it is at equal distance from previous prime (7912133309) and next prime (7912133323).

It can be written as a sum of positive squares in 2 ways, for example, as 2997562500 + 4914570816 = 54750^2 + 70104^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7912133316² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70875 + ... + 144386.

It is an arithmetic number, because the mean of its divisors is an integer number (556105459).

Almost surely, 2^7912133316 is an apocalyptic number.

It is an amenable number.

7912133316 is an abundant number, since it is smaller than the sum of its proper divisors (12107663208).

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

7912133316 is a wasteful number, since it uses less digits than its factorization.

7912133316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216292 (or 216287 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 7912133316 is about 88950.1732207420. The cubic root of 7912133316 is about 1992.6508040709.

The spelling of 7912133316 in words is "seven billion, nine hundred twelve million, one hundred thirty-three thousand, three hundred sixteen".