3091864681913 has 4 divisors (see below), whose sum is σ = 3533559636480. Its totient is φ = 2650169727348.

The previous prime is 3091864681909. The next prime is 3091864681933. The reversal of 3091864681913 is 3191864681903.

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 3091864681913 - 2² = 3091864681909 is a prime.

It is a super-2 number, since 2×3091864681913² (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 (3091864681933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220847477273 + ... + 220847477286.

It is an arithmetic number, because the mean of its divisors is an integer number (883389909120).

Almost surely, 2^{3091864681913} is an apocalyptic number.

It is an amenable number.

3091864681913 is a deficient number, since it is larger than the sum of its proper divisors (441694954567).

3091864681913 is an equidigital number, since it uses as much as digits as its factorization.

3091864681913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441694954566.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The spelling of 3091864681913 in words is "three trillion, ninety-one billion, eight hundred sixty-four million, six hundred eighty-one thousand, nine hundred thirteen".