2611621859 has 16 divisors (see below), whose sum is σ = 3277625856. Its totient is φ = 2021544000.

The previous prime is 2611621849. The next prime is 2611621919. The reversal of 2611621859 is 9581261162.

It is a de Polignac number, because none of the positive numbers 2^k-2611621859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2611621849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100682 + ... + 123935.

It is an arithmetic number, because the mean of its divisors is an integer number (204851616).

Almost surely, 2^2611621859 is an apocalyptic number.

2611621859 is a deficient number, since it is larger than the sum of its proper divisors (666003997).

2611621859 is a wasteful number, since it uses less digits than its factorization.

2611621859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224786.

The product of its digits is 51840, while the sum is 41.

The square root of 2611621859 is about 51104.0297726119. The cubic root of 2611621859 is about 1377.1146496711.

The spelling of 2611621859 in words is "two billion, six hundred eleven million, six hundred twenty-one thousand, eight hundred fifty-nine".