22454144627 has 2 divisors, whose sum is σ = 22454144628. Its totient is φ = 22454144626.

The previous prime is 22454144623. The next prime is 22454144639. The reversal of 22454144627 is 72644145422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22454144627 - 2² = 22454144623 is a prime.

It is a super-2 number, since 2×22454144627² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22454144623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11227072313 + 11227072314.

It is an arithmetic number, because the mean of its divisors is an integer number (11227072314).

Almost surely, 2^22454144627 is an apocalyptic number.

22454144627 is a deficient number, since it is larger than the sum of its proper divisors (1).

22454144627 is an equidigital number, since it uses as much as digits as its factorization.

22454144627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 41.

The spelling of 22454144627 in words is "twenty-two billion, four hundred fifty-four million, one hundred forty-four thousand, six hundred twenty-seven".