22918429399 has 2 divisors, whose sum is σ = 22918429400. Its totient is φ = 22918429398.

The previous prime is 22918429397. The next prime is 22918429421. The reversal of 22918429399 is 99392481922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22918429399 - 2¹ = 22918429397 is a prime.

It is a super-2 number, since 2×22918429399² (a number of 22 digits) contains 22 as substring.

Together with 22918429397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22918429397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11459214699 + 11459214700.

It is an arithmetic number, because the mean of its divisors is an integer number (11459214700).

Almost surely, 2^22918429399 is an apocalyptic number.

22918429399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22918429399 is an equidigital number, since it uses as much as digits as its factorization.

22918429399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 58.

The spelling of 22918429399 in words is "twenty-two billion, nine hundred eighteen million, four hundred twenty-nine thousand, three hundred ninety-nine".