2634538566 has 24 divisors (see below), whose sum is σ = 5791631832. Its totient is φ = 798344800.

The previous prime is 2634538559. The next prime is 2634538589. The reversal of 2634538566 is 6658354362.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1813695 + ... + 1815146.

It is an arithmetic number, because the mean of its divisors is an integer number (241317993).

Almost surely, 2^2634538566 is an apocalyptic number.

2634538566 is an abundant number, since it is smaller than the sum of its proper divisors (3157093266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2634538566 is a wasteful number, since it uses less digits than its factorization.

2634538566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628868 (or 3628857 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 48.

The square root of 2634538566 is about 51327.7562922830. The cubic root of 2634538566 is about 1381.1309370260.

The spelling of 2634538566 in words is "two billion, six hundred thirty-four million, five hundred thirty-eight thousand, five hundred sixty-six".