2591850849 has 16 divisors (see below), whose sum is σ = 3965230080. Its totient is φ = 1475154000.

The previous prime is 2591850839. The next prime is 2591850853. The reversal of 2591850849 is 9480581952.

It is not a de Polignac number, because 2591850849 - 2⁸ = 2591850593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2591850839) 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, 240589 + ... + 251130.

It is an arithmetic number, because the mean of its divisors is an integer number (247826880).

Almost surely, 2^2591850849 is an apocalyptic number.

It is an amenable number.

2591850849 is a deficient number, since it is larger than the sum of its proper divisors (1373379231).

2591850849 is a wasteful number, since it uses less digits than its factorization.

2591850849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491980.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The square root of 2591850849 is about 50910.2234231986. The cubic root of 2591850849 is about 1373.6307425225.

It can be divided in two parts, 25918 and 50849, that added together give a palindrome (76767).

The spelling of 2591850849 in words is "two billion, five hundred ninety-one million, eight hundred fifty thousand, eight hundred forty-nine".