22662647639 has 4 divisors (see below), whose sum is σ = 22664157600. Its totient is φ = 22661137680.

The previous prime is 22662647629. The next prime is 22662647647. The reversal of 22662647639 is 93674626622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93674626622 = 2 ⋅46837313311.

It is a cyclic number.

It is not a de Polignac number, because 22662647639 - 2⁸ = 22662647383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22662647629) 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, 732239 + ... + 762560.

It is an arithmetic number, because the mean of its divisors is an integer number (5666039400).

Almost surely, 2^22662647639 is an apocalyptic number.

22662647639 is a deficient number, since it is larger than the sum of its proper divisors (1509961).

22662647639 is a wasteful number, since it uses less digits than its factorization.

22662647639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509960.

The product of its digits is 7838208, while the sum is 53.

The spelling of 22662647639 in words is "twenty-two billion, six hundred sixty-two million, six hundred forty-seven thousand, six hundred thirty-nine".