22704862639 has 2 divisors, whose sum is σ = 22704862640. Its totient is φ = 22704862638.

The previous prime is 22704862571. The next prime is 22704862673. The reversal of 22704862639 is 93626840722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22704862639 - 2⁹ = 22704862127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22704862592 and 22704862601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22704862039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11352431319 + 11352431320.

It is an arithmetic number, because the mean of its divisors is an integer number (11352431320).

Almost surely, 2^22704862639 is an apocalyptic number.

22704862639 is a deficient number, since it is larger than the sum of its proper divisors (1).

22704862639 is an equidigital number, since it uses as much as digits as its factorization.

22704862639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 22704862639 in words is "twenty-two billion, seven hundred four million, eight hundred sixty-two thousand, six hundred thirty-nine".