244454525454421 has 2 divisors, whose sum is σ = 244454525454422. Its totient is φ = 244454525454420.

The previous prime is 244454525454413. The next prime is 244454525454463. The reversal of 244454525454421 is 124454525454442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141990126553521 + 102464398900900 = 11915961^2 + 10122470^2 .

It is a cyclic number.

It is not a de Polignac number, because 244454525454421 - 2³ = 244454525454413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244454522454421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122227262727210 + 122227262727211.

It is an arithmetic number, because the mean of its divisors is an integer number (122227262727211).

Almost surely, 2^{244454525454421} is an apocalyptic number.

It is an amenable number.

244454525454421 is a deficient number, since it is larger than the sum of its proper divisors (1).

244454525454421 is an equidigital number, since it uses as much as digits as its factorization.

244454525454421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81920000, while the sum is 55.

The spelling of 244454525454421 in words is "two hundred forty-four trillion, four hundred fifty-four billion, five hundred twenty-five million, four hundred fifty-four thousand, four hundred twenty-one".