22637540489 has 2 divisors, whose sum is σ = 22637540490. Its totient is φ = 22637540488.

The previous prime is 22637540483. The next prime is 22637540507. The reversal of 22637540489 is 98404573622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19686334864 + 2951205625 = 140308^2 + 54325^2 .

It is a cyclic number.

It is not a de Polignac number, because 22637540489 - 2⁴ = 22637540473 is a prime.

It is a super-2 number, since 2×22637540489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22637540483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318770244 + 11318770245.

It is an arithmetic number, because the mean of its divisors is an integer number (11318770245).

Almost surely, 2^22637540489 is an apocalyptic number.

It is an amenable number.

22637540489 is a deficient number, since it is larger than the sum of its proper divisors (1).

22637540489 is an equidigital number, since it uses as much as digits as its factorization.

22637540489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 22637540489 in words is "twenty-two billion, six hundred thirty-seven million, five hundred forty thousand, four hundred eighty-nine".