2639685622 has 16 divisors (see below), whose sum is σ = 4526700192. Its totient is φ = 1130912640.

The previous prime is 2639685593. The next prime is 2639685661. The reversal of 2639685622 is 2265869362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13488 + ... + 73900.

It is an arithmetic number, because the mean of its divisors is an integer number (282918762).

Almost surely, 2^2639685622 is an apocalyptic number.

2639685622 is a deficient number, since it is larger than the sum of its proper divisors (1887014570).

2639685622 is a wasteful number, since it uses less digits than its factorization.

2639685622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63543.

The product of its digits is 1866240, while the sum is 49.

The square root of 2639685622 is about 51377.8709368148. The cubic root of 2639685622 is about 1382.0297830913.

The spelling of 2639685622 in words is "two billion, six hundred thirty-nine million, six hundred eighty-five thousand, six hundred twenty-two".