22451511389 has 2 divisors, whose sum is σ = 22451511390. Its totient is φ = 22451511388.

The previous prime is 22451511307. The next prime is 22451511391. The reversal of 22451511389 is 98311515422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19780172164 + 2671339225 = 140642^2 + 51685^2 .

It is a cyclic number.

It is not a de Polignac number, because 22451511389 - 2¹⁶ = 22451445853 is a prime.

Together with 22451511391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22451511289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11225755694 + 11225755695.

It is an arithmetic number, because the mean of its divisors is an integer number (11225755695).

Almost surely, 2^22451511389 is an apocalyptic number.

It is an amenable number.

22451511389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22451511389 is an equidigital number, since it uses as much as digits as its factorization.

22451511389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 41.

The spelling of 22451511389 in words is "twenty-two billion, four hundred fifty-one million, five hundred eleven thousand, three hundred eighty-nine".