2634611689 has 2 divisors, whose sum is σ = 2634611690. Its totient is φ = 2634611688.

The previous prime is 2634611657. The next prime is 2634611719. The reversal of 2634611689 is 9861164362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2629946089 + 4665600 = 51283^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2634611689 - 2⁵ = 2634611657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2634611389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317305844 + 1317305845.

It is an arithmetic number, because the mean of its divisors is an integer number (1317305845).

Almost surely, 2^2634611689 is an apocalyptic number.

It is an amenable number.

2634611689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2634611689 is an equidigital number, since it uses as much as digits as its factorization.

2634611689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The square root of 2634611689 is about 51328.4686017419. The cubic root of 2634611689 is about 1381.1437149123.

The spelling of 2634611689 in words is "two billion, six hundred thirty-four million, six hundred eleven thousand, six hundred eighty-nine".