2634554643 has 16 divisors (see below), whose sum is σ = 4016414976. Its totient is φ = 1504764000.

The previous prime is 2634554639. The next prime is 2634554669. The reversal of 2634554643 is 3464554362.

It is a happy number.

It is not a de Polignac number, because 2634554643 - 2² = 2634554639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2634554595 and 2634554604.

It is not an unprimeable number, because it can be changed into a prime (2634554603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19405 + ... + 75137.

It is an arithmetic number, because the mean of its divisors is an integer number (251025936).

Almost surely, 2^2634554643 is an apocalyptic number.

2634554643 is a deficient number, since it is larger than the sum of its proper divisors (1381860333).

2634554643 is a wasteful number, since it uses less digits than its factorization.

2634554643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57994.

The product of its digits is 1036800, while the sum is 42.

The square root of 2634554643 is about 51327.9129032148. The cubic root of 2634554643 is about 1381.1337464233.

The spelling of 2634554643 in words is "two billion, six hundred thirty-four million, five hundred fifty-four thousand, six hundred forty-three".