544372390693 has 2 divisors, whose sum is σ = 544372390694. Its totient is φ = 544372390692.

The previous prime is 544372390691. The next prime is 544372390717. The reversal of 544372390693 is 396093273445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513833779684 + 30538611009 = 716822^2 + 174753^2 .

It is a cyclic number.

It is not a de Polignac number, because 544372390693 - 2¹ = 544372390691 is a prime.

Together with 544372390691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544372390691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272186195346 + 272186195347.

It is an arithmetic number, because the mean of its divisors is an integer number (272186195347).

Almost surely, 2^544372390693 is an apocalyptic number.

It is an amenable number.

544372390693 is a deficient number, since it is larger than the sum of its proper divisors (1).

544372390693 is an equidigital number, since it uses as much as digits as its factorization.

544372390693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 55.

The spelling of 544372390693 in words is "five hundred forty-four billion, three hundred seventy-two million, three hundred ninety thousand, six hundred ninety-three".