44986868909 has 2 divisors, whose sum is σ = 44986868910. Its totient is φ = 44986868908.

The previous prime is 44986868887. The next prime is 44986868981. The reversal of 44986868909 is 90986868944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28901020009 + 16085848900 = 170003^2 + 126830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44986868909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44986868809) 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, 22493434454 + 22493434455.

It is an arithmetic number, because the mean of its divisors is an integer number (22493434455).

Almost surely, 2^44986868909 is an apocalyptic number.

It is an amenable number.

44986868909 is a deficient number, since it is larger than the sum of its proper divisors (1).

44986868909 is an equidigital number, since it uses as much as digits as its factorization.

44986868909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214990848, while the sum is 71.

The spelling of 44986868909 in words is "forty-four billion, nine hundred eighty-six million, eight hundred sixty-eight thousand, nine hundred nine".