2544221321459 has 2 divisors, whose sum is σ = 2544221321460. Its totient is φ = 2544221321458.

The previous prime is 2544221321423. The next prime is 2544221321501. The reversal of 2544221321459 is 9541231224452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2544221321459 - 2¹⁶ = 2544221255923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2544221321959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272110660729 + 1272110660730.

It is an arithmetic number, because the mean of its divisors is an integer number (1272110660730).

Almost surely, 2^{2544221321459} is an apocalyptic number.

2544221321459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544221321459 is an equidigital number, since it uses as much as digits as its factorization.

2544221321459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 44.

The spelling of 2544221321459 in words is "two trillion, five hundred forty-four billion, two hundred twenty-one million, three hundred twenty-one thousand, four hundred fifty-nine".