44898894917 has 2 divisors, whose sum is σ = 44898894918. Its totient is φ = 44898894916.

The previous prime is 44898894869. The next prime is 44898894923. The reversal of 44898894917 is 71949889844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42686039236 + 2212855681 = 206606^2 + 47041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44898894917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44898894947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22449447458 + 22449447459.

It is an arithmetic number, because the mean of its divisors is an integer number (22449447459).

Almost surely, 2^44898894917 is an apocalyptic number.

It is an amenable number.

44898894917 is a deficient number, since it is larger than the sum of its proper divisors (1).

44898894917 is an equidigital number, since it uses as much as digits as its factorization.

44898894917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 71.

The spelling of 44898894917 in words is "forty-four billion, eight hundred ninety-eight million, eight hundred ninety-four thousand, nine hundred seventeen".