3109478711077 has 4 divisors (see below), whose sum is σ = 3109505419980. Its totient is φ = 3109452002176.

The previous prime is 3109478711051. The next prime is 3109478711147. The reversal of 3109478711077 is 7701178749013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2150428676356 + 959050034721 = 1466434^2 + 979311^2 .

It is a cyclic number.

It is not a de Polignac number, because 3109478711077 - 2³⁹ = 2559722897189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3109478711047) 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, 13179052 + ... + 13412917.

It is an arithmetic number, because the mean of its divisors is an integer number (777376354995).

Almost surely, 2^{3109478711077} is an apocalyptic number.

It is an amenable number.

3109478711077 is a deficient number, since it is larger than the sum of its proper divisors (26708903).

3109478711077 is a wasteful number, since it uses less digits than its factorization.

3109478711077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26708902.

The product of its (nonzero) digits is 2074464, while the sum is 55.

The spelling of 3109478711077 in words is "three trillion, one hundred nine billion, four hundred seventy-eight million, seven hundred eleven thousand, seventy-seven".