44538504457 has 2 divisors, whose sum is σ = 44538504458. Its totient is φ = 44538504456.

The previous prime is 44538504449. The next prime is 44538504499. The reversal of 44538504457 is 75440583544.

44538504457 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., 32868239616 + 11670264841 = 181296^2 + 108029^2 .

It is a cyclic number.

It is not a de Polignac number, because 44538504457 - 2³ = 44538504449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44538504457.

It is not a weakly prime, because it can be changed into another prime (44538504557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22269252228 + 22269252229.

It is an arithmetic number, because the mean of its divisors is an integer number (22269252229).

Almost surely, 2^44538504457 is an apocalyptic number.

It is an amenable number.

44538504457 is a deficient number, since it is larger than the sum of its proper divisors (1).

44538504457 is an equidigital number, since it uses as much as digits as its factorization.

44538504457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376000, while the sum is 49.

The spelling of 44538504457 in words is "forty-four billion, five hundred thirty-eight million, five hundred four thousand, four hundred fifty-seven".