2611691589 has 16 divisors (see below), whose sum is σ = 3970717632. Its totient is φ = 1512653568.

The previous prime is 2611691497. The next prime is 2611691591. The reversal of 2611691589 is 9851961162.

It is not a de Polignac number, because 2611691589 - 2⁸ = 2611691333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611651589) 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, 1968939 + ... + 1970264.

It is an arithmetic number, because the mean of its divisors is an integer number (248169852).

Almost surely, 2^2611691589 is an apocalyptic number.

It is an amenable number.

2611691589 is a deficient number, since it is larger than the sum of its proper divisors (1359026043).

2611691589 is a wasteful number, since it uses less digits than its factorization.

2611691589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939236.

The product of its digits is 233280, while the sum is 48.

The square root of 2611691589 is about 51104.7120038847. The cubic root of 2611691589 is about 1377.1269058290.

The spelling of 2611691589 in words is "two billion, six hundred eleven million, six hundred ninety-one thousand, five hundred eighty-nine".