2591782845 has 16 divisors (see below), whose sum is σ = 4258930560. Its totient is φ = 1344924864.

The previous prime is 2591782829. The next prime is 2591782883. The reversal of 2591782845 is 5482871952.

It is not a de Polignac number, because 2591782845 - 2⁴ = 2591782829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2334385 + ... + 2335494.

It is an arithmetic number, because the mean of its divisors is an integer number (266183160).

Almost surely, 2^2591782845 is an apocalyptic number.

It is an amenable number.

2591782845 is a deficient number, since it is larger than the sum of its proper divisors (1667147715).

2591782845 is a wasteful number, since it uses less digits than its factorization.

2591782845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669924.

The product of its digits is 1612800, while the sum is 51.

The square root of 2591782845 is about 50909.5555372466. Note that the first 4 decimals coincide. The cubic root of 2591782845 is about 1373.6187288165.

The spelling of 2591782845 in words is "two billion, five hundred ninety-one million, seven hundred eighty-two thousand, eight hundred forty-five".