2634611663 has 4 divisors (see below), whose sum is σ = 2719599168. Its totient is φ = 2549624160.

The previous prime is 2634611657. The next prime is 2634611689. The reversal of 2634611663 is 3661164362.

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 2634611663 - 2²⁰ = 2633563087 is a prime.

It is a super-2 number, since 2×2634611663² = 13882357229631251138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2634611263) 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 3 ways as a sum of consecutive naturals, for example, 42493706 + ... + 42493767.

It is an arithmetic number, because the mean of its divisors is an integer number (679899792).

Almost surely, 2^2634611663 is an apocalyptic number.

2634611663 is a deficient number, since it is larger than the sum of its proper divisors (84987505).

2634611663 is an equidigital number, since it uses as much as digits as its factorization.

2634611663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84987504.

The product of its digits is 93312, while the sum is 38.

The square root of 2634611663 is about 51328.4683484711. The cubic root of 2634611663 is about 1381.1437103690.

The spelling of 2634611663 in words is "two billion, six hundred thirty-four million, six hundred eleven thousand, six hundred sixty-three".