2591945972889 has 64 divisors (see below), whose sum is σ = 4502449459200. Its totient is φ = 1289337460992.

The previous prime is 2591945972849. The next prime is 2591945972897. The reversal of 2591945972889 is 9882795491952.

2591945972889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2591945972889 - 2⁹ = 2591945972377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2591945972809) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3466429 + ... + 4147290.

It is an arithmetic number, because the mean of its divisors is an integer number (70350772800).

Almost surely, 2^{2591945972889} is an apocalyptic number.

2591945972889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2591945972889 is a deficient number, since it is larger than the sum of its proper divisors (1910503486311).

2591945972889 is a wasteful number, since it uses less digits than its factorization.

2591945972889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613814.

The product of its digits is 1175731200, while the sum is 78.

The spelling of 2591945972889 in words is "two trillion, five hundred ninety-one billion, nine hundred forty-five million, nine hundred seventy-two thousand, eight hundred eighty-nine".