3115746859681 has 4 divisors (see below), whose sum is σ = 3115780384000. Its totient is φ = 3115713335364.

The previous prime is 3115746859669. The next prime is 3115746859703. The reversal of 3115746859681 is 1869586475113.

3115746859681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3115746859681 - 2⁵ = 3115746859649 is a prime.

It is a super-2 number, since 2×3115746859681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3115746859651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16622361 + ... + 16808758.

It is an arithmetic number, because the mean of its divisors is an integer number (778945096000).

Almost surely, 2^{3115746859681} is an apocalyptic number.

It is an amenable number.

3115746859681 is a deficient number, since it is larger than the sum of its proper divisors (33524319).

3115746859681 is an equidigital number, since it uses as much as digits as its factorization.

3115746859681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33524318.

The product of its digits is 43545600, while the sum is 64.

The spelling of 3115746859681 in words is "three trillion, one hundred fifteen billion, seven hundred forty-six million, eight hundred fifty-nine thousand, six hundred eighty-one".