3109278801913 has 4 divisors (see below), whose sum is σ = 3109309024768. Its totient is φ = 3109248579060.

The previous prime is 3109278801911. The next prime is 3109278801953. The reversal of 3109278801913 is 3191088729013.

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 3109278801913 - 2¹ = 3109278801911 is a prime.

It is a super-2 number, since 2×3109278801913² (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 (3109278801911) 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, 14956581 + ... + 15163042.

It is an arithmetic number, because the mean of its divisors is an integer number (777327256192).

Almost surely, 2^{3109278801913} is an apocalyptic number.

It is an amenable number.

3109278801913 is a deficient number, since it is larger than the sum of its proper divisors (30222855).

3109278801913 is a wasteful number, since it uses less digits than its factorization.

3109278801913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30222854.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 3109278801913 in words is "three trillion, one hundred nine billion, two hundred seventy-eight million, eight hundred one thousand, nine hundred thirteen".