2561796880183 has 2 divisors, whose sum is σ = 2561796880184. Its totient is φ = 2561796880182.

The previous prime is 2561796880171. The next prime is 2561796880241. The reversal of 2561796880183 is 3810886971652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2561796880183 - 2²⁹ = 2561260009271 is a prime.

It is a super-2 number, since 2×2561796880183² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2561796880103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280898440091 + 1280898440092.

It is an arithmetic number, because the mean of its divisors is an integer number (1280898440092).

Almost surely, 2^{2561796880183} is an apocalyptic number.

2561796880183 is a deficient number, since it is larger than the sum of its proper divisors (1).

2561796880183 is an equidigital number, since it uses as much as digits as its factorization.

2561796880183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 2561796880183 in words is "two trillion, five hundred sixty-one billion, seven hundred ninety-six million, eight hundred eighty thousand, one hundred eighty-three".