44542963813 has 2 divisors, whose sum is σ = 44542963814. Its totient is φ = 44542963812.

The previous prime is 44542963807. The next prime is 44542963889. The reversal of 44542963813 is 31836924544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41076344929 + 3466618884 = 202673^2 + 58878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44542963813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44542964813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22271481906 + 22271481907.

It is an arithmetic number, because the mean of its divisors is an integer number (22271481907).

Almost surely, 2^44542963813 is an apocalyptic number.

It is an amenable number.

44542963813 is a deficient number, since it is larger than the sum of its proper divisors (1).

44542963813 is an equidigital number, since it uses as much as digits as its factorization.

44542963813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 49.

The spelling of 44542963813 in words is "forty-four billion, five hundred forty-two million, nine hundred sixty-three thousand, eight hundred thirteen".