22278769641 has 12 divisors (see below), whose sum is σ = 32433836032. Its totient is φ = 14735563416.

The previous prime is 22278769631. The next prime is 22278769649. The reversal of 22278769641 is 14696787222.

It is not a de Polignac number, because 22278769641 - 2¹⁵ = 22278736873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22278769649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9744601 + ... + 9746886.

Almost surely, 2^22278769641 is an apocalyptic number.

It is an amenable number.

22278769641 is a deficient number, since it is larger than the sum of its proper divisors (10155066391).

22278769641 is a wasteful number, since it uses less digits than its factorization.

22278769641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19491620 (or 19491617 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 22278769641 in words is "twenty-two billion, two hundred seventy-eight million, seven hundred sixty-nine thousand, six hundred forty-one".