22548331989 has 20 divisors (see below), whose sum is σ = 33783302124. Its totient is φ = 14987597184.

The previous prime is 22548331987. The next prime is 22548331991. The reversal of 22548331989 is 98913384522.

22548331989 is a `hidden beast` number, since 2 + 2 + 548 + 3 + 3 + 1 + 98 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (22548331987) and next prime (22548331991).

It can be written as a sum of positive squares in 2 ways, for example, as 9561906225 + 12986425764 = 97785^2 + 113958^2 .

It is not a de Polignac number, because 22548331989 - 2¹ = 22548331987 is a prime.

It is a super-2 number, since 2×22548331989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22548331987) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 385722 + ... + 440315.

Almost surely, 2^22548331989 is an apocalyptic number.

It is an amenable number.

22548331989 is a deficient number, since it is larger than the sum of its proper divisors (11234970135).

22548331989 is an equidigital number, since it uses as much as digits as its factorization.

22548331989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826386 (or 826377 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 22548331989 in words is "twenty-two billion, five hundred forty-eight million, three hundred thirty-one thousand, nine hundred eighty-nine".