22429691644 has 6 divisors (see below), whose sum is σ = 39251960384. Its totient is φ = 11214845820.

The previous prime is 22429691617. The next prime is 22429691651. The reversal of 22429691644 is 44619692422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803711452 + ... + 2803711459.

Almost surely, 2^22429691644 is an apocalyptic number.

It is an amenable number.

22429691644 is a deficient number, since it is larger than the sum of its proper divisors (16822268740).

22429691644 is a wasteful number, since it uses less digits than its factorization.

22429691644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607422915 (or 5607422913 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The spelling of 22429691644 in words is "twenty-two billion, four hundred twenty-nine million, six hundred ninety-one thousand, six hundred forty-four".