244622226451 has 2 divisors, whose sum is σ = 244622226452. Its totient is φ = 244622226450.

The previous prime is 244622226403. The next prime is 244622226491. The reversal of 244622226451 is 154622226442.

It is an a-pointer prime, because the next prime (244622226491) can be obtained adding 244622226451 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244622226451 is a prime.

It is not a weakly prime, because it can be changed into another prime (244622226491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122311113225 + 122311113226.

It is an arithmetic number, because the mean of its divisors is an integer number (122311113226).

Almost surely, 2^244622226451 is an apocalyptic number.

244622226451 is a deficient number, since it is larger than the sum of its proper divisors (1).

244622226451 is an equidigital number, since it uses as much as digits as its factorization.

244622226451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 40.

Subtracting from 244622226451 its reverse (154622226442), we obtain a palindrome (90000000009).

The spelling of 244622226451 in words is "two hundred forty-four billion, six hundred twenty-two million, two hundred twenty-six thousand, four hundred fifty-one".