44444567897 has 2 divisors, whose sum is σ = 44444567898. Its totient is φ = 44444567896.

The previous prime is 44444567873. The next prime is 44444567911. The reversal of 44444567897 is 79876544444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23620923481 + 20823644416 = 153691^2 + 144304^2 .

It is a cyclic number.

It is not a de Polignac number, because 44444567897 - 2⁸ = 44444567641 is a prime.

It is not a weakly prime, because it can be changed into another prime (44444567807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22222283948 + 22222283949.

It is an arithmetic number, because the mean of its divisors is an integer number (22222283949).

Almost surely, 2^44444567897 is an apocalyptic number.

It is an amenable number.

44444567897 is a deficient number, since it is larger than the sum of its proper divisors (1).

44444567897 is an equidigital number, since it uses as much as digits as its factorization.

44444567897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108380160, while the sum is 62.

The spelling of 44444567897 in words is "forty-four billion, four hundred forty-four million, five hundred sixty-seven thousand, eight hundred ninety-seven".