3079393681 has 48 divisors (see below), whose sum is σ = 4037720400. Its totient is φ = 2324754432.

The previous prime is 3079393679. The next prime is 3079393687. The reversal of 3079393681 is 1863939703.

It can be written as a sum of positive squares in 8 ways, for example, as 1157360400 + 1922033281 = 34020^2 + 43841^2 .

It is not a de Polignac number, because 3079393681 - 2¹ = 3079393679 is a prime.

It is a super-2 number, since 2×3079393681² = 18965330885165459522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (3079393687) 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 47 ways as a sum of consecutive naturals, for example, 1643161 + ... + 1645033.

It is an arithmetic number, because the mean of its divisors is an integer number (84119175).

Almost surely, 2^3079393681 is an apocalyptic number.

It is an amenable number.

3079393681 is a deficient number, since it is larger than the sum of its proper divisors (958326719).

3079393681 is a wasteful number, since it uses less digits than its factorization.

3079393681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 2011 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 3079393681 is about 55492.2848781702. The cubic root of 3079393681 is about 1454.8617907399.

The spelling of 3079393681 in words is "three billion, seventy-nine million, three hundred ninety-three thousand, six hundred eighty-one".