44596564981 has 2 divisors, whose sum is σ = 44596564982. Its totient is φ = 44596564980.

The previous prime is 44596564973. The next prime is 44596565029. The reversal of 44596564981 is 18946569544.

It is a happy number.

44596564981 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., 32853375025 + 11743189956 = 181255^2 + 108366^2 .

It is a cyclic number.

It is not a de Polignac number, because 44596564981 - 2³ = 44596564973 is a prime.

It is a super-2 number, since 2×44596564981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44396564981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22298282490 + 22298282491.

It is an arithmetic number, because the mean of its divisors is an integer number (22298282491).

Almost surely, 2^44596564981 is an apocalyptic number.

It is an amenable number.

44596564981 is a deficient number, since it is larger than the sum of its proper divisors (1).

44596564981 is an equidigital number, since it uses as much as digits as its factorization.

44596564981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37324800, while the sum is 61.

The spelling of 44596564981 in words is "forty-four billion, five hundred ninety-six million, five hundred sixty-four thousand, nine hundred eighty-one".