22354569989 has 16 divisors (see below), whose sum is σ = 23383566000. Its totient is φ = 21343666176.

The previous prime is 22354569977. The next prime is 22354570001. The reversal of 22354569989 is 98996545322.

It is an interprime number because it is at equal distance from previous prime (22354569977) and next prime (22354570001).

It can be written as a sum of positive squares in 8 ways, for example, as 108847489 + 22245722500 = 10433^2 + 149150^2 .

It is a cyclic number.

It is not a de Polignac number, because 22354569989 - 2⁴ = 22354569973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22354569089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1463777 + ... + 1478969.

It is an arithmetic number, because the mean of its divisors is an integer number (1461472875).

Almost surely, 2^22354569989 is an apocalyptic number.

22354569989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22354569989 is a deficient number, since it is larger than the sum of its proper divisors (1028996011).

22354569989 is a wasteful number, since it uses less digits than its factorization.

22354569989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15784.

The product of its digits is 41990400, while the sum is 62.

The spelling of 22354569989 in words is "twenty-two billion, three hundred fifty-four million, five hundred sixty-nine thousand, nine hundred eighty-nine".