3081478756 has 12 divisors (see below), whose sum is σ = 5393043180. Its totient is φ = 1540609280.

The previous prime is 3081478753. The next prime is 3081478787. The reversal of 3081478756 is 6578741803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 754381156 + 2327097600 = 27466^2 + 48240^2 .

It is a super-2 number, since 2×3081478756² = 18991022647358615072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3081478753) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37536 + ... + 87016.

It is an arithmetic number, because the mean of its divisors is an integer number (449420265).

Almost surely, 2^3081478756 is an apocalyptic number.

It is an amenable number.

3081478756 is a deficient number, since it is larger than the sum of its proper divisors (2311564424).

3081478756 is a wasteful number, since it uses less digits than its factorization.

3081478756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65054 (or 65052 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 3081478756 is about 55511.0687701111. The cubic root of 3081478756 is about 1455.1900817233.

The spelling of 3081478756 in words is "three billion, eighty-one million, four hundred seventy-eight thousand, seven hundred fifty-six".