22007562309 has 12 divisors (see below), whose sum is σ = 32145878700. Its totient is φ = 14506857024.

The previous prime is 22007562221. The next prime is 22007562319. The reversal of 22007562309 is 90326570022.

22007562309 is a `hidden beast` number, since 2 + 20 + 0 + 7 + 5 + 623 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6548370084 + 15459192225 = 80922^2 + 124335^2 .

It is not a de Polignac number, because 22007562309 - 2¹⁶ = 22007496773 is a prime.

It is a super-2 number, since 2×22007562309² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007562319) 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, 13736754 + ... + 13738355.

It is an arithmetic number, because the mean of its divisors is an integer number (2678823225).

Almost surely, 2^22007562309 is an apocalyptic number.

It is an amenable number.

22007562309 is a deficient number, since it is larger than the sum of its proper divisors (10138316391).

22007562309 is a wasteful number, since it uses less digits than its factorization.

22007562309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27475204 (or 27475201 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 22007562309 in words is "twenty-two billion, seven million, five hundred sixty-two thousand, three hundred nine".