22126278069 has 72 divisors (see below), whose sum is σ = 38687288640. Its totient is φ = 11935351296.

The previous prime is 22126278059. The next prime is 22126278071. The reversal of 22126278069 is 96087262122.

22126278069 is a `hidden beast` number, since 2 + 2 + 12 + 627 + 8 + 0 + 6 + 9 = 666.

It is not a de Polignac number, because 22126278069 - 2¹³ = 22126269877 is a prime.

It is a super-2 number, since 2×22126278069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22126278059) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6980517 + ... + 6983685.

Almost surely, 2^22126278069 is an apocalyptic number.

It is an amenable number.

22126278069 is a deficient number, since it is larger than the sum of its proper divisors (16561010571).

22126278069 is a wasteful number, since it uses less digits than its factorization.

22126278069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527 (or 3505 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 22126278069 in words is "twenty-two billion, one hundred twenty-six million, two hundred seventy-eight thousand, sixty-nine".