22398914869 has 2 divisors, whose sum is σ = 22398914870. Its totient is φ = 22398914868.

The previous prime is 22398914861. The next prime is 22398914887. The reversal of 22398914869 is 96841989322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20610047844 + 1788867025 = 143562^2 + 42295^2 .

It is a cyclic number.

It is not a de Polignac number, because 22398914869 - 2³ = 22398914861 is a prime.

It is a super-2 number, since 2×22398914869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22398914861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11199457434 + 11199457435.

It is an arithmetic number, because the mean of its divisors is an integer number (11199457435).

Almost surely, 2^22398914869 is an apocalyptic number.

It is an amenable number.

22398914869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22398914869 is an equidigital number, since it uses as much as digits as its factorization.

22398914869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13436928, while the sum is 61.

The spelling of 22398914869 in words is "twenty-two billion, three hundred ninety-eight million, nine hundred fourteen thousand, eight hundred sixty-nine".