2544972389 has 2 divisors, whose sum is σ = 2544972390. Its totient is φ = 2544972388.

The previous prime is 2544972383. The next prime is 2544972407. The reversal of 2544972389 is 9832794452.

2544972389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2218881025 + 326091364 = 47105^2 + 18058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2544972389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2544972389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544972383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272486194 + 1272486195.

It is an arithmetic number, because the mean of its divisors is an integer number (1272486195).

Almost surely, 2^2544972389 is an apocalyptic number.

It is an amenable number.

2544972389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544972389 is an equidigital number, since it uses as much as digits as its factorization.

2544972389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

The square root of 2544972389 is about 50447.7193637136. The cubic root of 2544972389 is about 1365.2987469747.

The spelling of 2544972389 in words is "two billion, five hundred forty-four million, nine hundred seventy-two thousand, three hundred eighty-nine".