2591971852 has 24 divisors (see below), whose sum is σ = 4618945296. Its totient is φ = 1272488448.

The previous prime is 2591971847. The next prime is 2591971853. The reversal of 2591971852 is 2581791952.

2591971852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2591971796 and 2591971805.

It is not an unprimeable number, because it can be changed into a prime (2591971853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21568 + ... + 75160.

It is an arithmetic number, because the mean of its divisors is an integer number (192456054).

Almost surely, 2^2591971852 is an apocalyptic number.

It is an amenable number.

2591971852 is a deficient number, since it is larger than the sum of its proper divisors (2026973444).

2591971852 is a wasteful number, since it uses less digits than its factorization.

2591971852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53817 (or 53815 counting only the distinct ones).

The product of its digits is 453600, while the sum is 49.

The square root of 2591971852 is about 50911.4118052132. The cubic root of 2591971852 is about 1373.6521186052.

The spelling of 2591971852 in words is "two billion, five hundred ninety-one million, nine hundred seventy-one thousand, eight hundred fifty-two".