2599849159 has 4 divisors (see below), whose sum is σ = 2689499160. Its totient is φ = 2510199160.

The previous prime is 2599849139. The next prime is 2599849169. The reversal of 2599849159 is 9519489952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2599849159 - 2¹³ = 2599840967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2599849097 and 2599849106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2599849129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44824957 + ... + 44825014.

It is an arithmetic number, because the mean of its divisors is an integer number (672374790).

Almost surely, 2^2599849159 is an apocalyptic number.

2599849159 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2599849159 is a deficient number, since it is larger than the sum of its proper divisors (89650001).

2599849159 is an equidigital number, since it uses as much as digits as its factorization.

2599849159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89650000.

The product of its digits is 10497600, while the sum is 61.

The square root of 2599849159 is about 50988.7159967772. The cubic root of 2599849159 is about 1375.0422746672.

It can be divided in two parts, 25998 and 49159, that added together give a palindrome (75157).

The spelling of 2599849159 in words is "two billion, five hundred ninety-nine million, eight hundred forty-nine thousand, one hundred fifty-nine".