2591779658845 has 16 divisors (see below), whose sum is σ = 3363390938880. Its totient is φ = 1905921509184.

The previous prime is 2591779658843. The next prime is 2591779658917. The reversal of 2591779658845 is 5488569771952.

2591779658845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2591779658845 - 2¹ = 2591779658843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591779658843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83401899 + ... + 83432968.

It is an arithmetic number, because the mean of its divisors is an integer number (210211933680).

Almost surely, 2^{2591779658845} is an apocalyptic number.

It is an amenable number.

2591779658845 is a deficient number, since it is larger than the sum of its proper divisors (771611280035).

2591779658845 is a wasteful number, since it uses less digits than its factorization.

2591779658845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166835124.

The product of its digits is 1524096000, while the sum is 76.

The spelling of 2591779658845 in words is "two trillion, five hundred ninety-one billion, seven hundred seventy-nine million, six hundred fifty-eight thousand, eight hundred forty-five".