544021326472913 has 2 divisors, whose sum is σ = 544021326472914. Its totient is φ = 544021326472912.

The previous prime is 544021326472901. The next prime is 544021326472937. The reversal of 544021326472913 is 319274623120445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300789603964369 + 243231722508544 = 17343287^2 + 15595888^2 .

It is a cyclic number.

It is not a de Polignac number, because 544021326472913 - 2³⁶ = 543952606996177 is a prime.

It is not a weakly prime, because it can be changed into another prime (544021326471913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272010663236456 + 272010663236457.

It is an arithmetic number, because the mean of its divisors is an integer number (272010663236457).

Almost surely, 2^{544021326472913} is an apocalyptic number.

It is an amenable number.

544021326472913 is a deficient number, since it is larger than the sum of its proper divisors (1).

544021326472913 is an equidigital number, since it uses as much as digits as its factorization.

544021326472913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 544021326472913 in words is "five hundred forty-four trillion, twenty-one billion, three hundred twenty-six million, four hundred seventy-two thousand, nine hundred thirteen".