44145989093 has 2 divisors, whose sum is σ = 44145989094. Its totient is φ = 44145989092.

The previous prime is 44145989047. The next prime is 44145989137. The reversal of 44145989093 is 39098954144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40932573124 + 3213415969 = 202318^2 + 56687^2 .

It is a cyclic number.

It is not a de Polignac number, because 44145989093 - 2²⁰ = 44144940517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44145982093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22072994546 + 22072994547.

It is an arithmetic number, because the mean of its divisors is an integer number (22072994547).

Almost surely, 2^44145989093 is an apocalyptic number.

It is an amenable number.

44145989093 is a deficient number, since it is larger than the sum of its proper divisors (1).

44145989093 is an equidigital number, since it uses as much as digits as its factorization.

44145989093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 44145989093 in words is "forty-four billion, one hundred forty-five million, nine hundred eighty-nine thousand, ninety-three".