2660054780879 has 4 divisors (see below), whose sum is σ = 2660685279240. Its totient is φ = 2659424282520.

The previous prime is 2660054780843. The next prime is 2660054780899. The reversal of 2660054780879 is 9780874500662.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660054780879 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 (2660054780839) 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, 315242852 + ... + 315251289.

It is an arithmetic number, because the mean of its divisors is an integer number (665171319810).

Almost surely, 2^{2660054780879} is an apocalyptic number.

2660054780879 is a deficient number, since it is larger than the sum of its proper divisors (630498361).

2660054780879 is an equidigital number, since it uses as much as digits as its factorization.

2660054780879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630498360.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 2660054780879 in words is "two trillion, six hundred sixty billion, fifty-four million, seven hundred eighty thousand, eight hundred seventy-nine".