612544446265013 has 2 divisors, whose sum is σ = 612544446265014. Its totient is φ = 612544446265012.

The previous prime is 612544446265001. The next prime is 612544446265039. The reversal of 612544446265013 is 310562644445216.

612544446265013 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., 611627950218769 + 916496046244 = 24731113^2 + 957338^2 .

It is a cyclic number.

It is not a de Polignac number, because 612544446265013 - 2⁸ = 612544446264757 is a prime.

It is a super-2 number, since 2×612544446265013² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612544446265043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306272223132506 + 306272223132507.

It is an arithmetic number, because the mean of its divisors is an integer number (306272223132507).

Almost surely, 2^{612544446265013} is an apocalyptic number.

It is an amenable number.

612544446265013 is a deficient number, since it is larger than the sum of its proper divisors (1).

612544446265013 is an equidigital number, since it uses as much as digits as its factorization.

612544446265013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16588800, while the sum is 53.

The spelling of 612544446265013 in words is "six hundred twelve trillion, five hundred forty-four billion, four hundred forty-six million, two hundred sixty-five thousand, thirteen".