244456557989 has 16 divisors (see below), whose sum is σ = 303569633280. Its totient is φ = 192102652080.

The previous prime is 244456557971. The next prime is 244456558001. The reversal of 244456557989 is 989755654442.

It is a cyclic number.

It is not a de Polignac number, because 244456557989 - 2¹⁶ = 244456492453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244456557089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29641349 + ... + 29649594.

It is an arithmetic number, because the mean of its divisors is an integer number (18973102080).

Almost surely, 2^244456557989 is an apocalyptic number.

It is an amenable number.

244456557989 is a deficient number, since it is larger than the sum of its proper divisors (59113075291).

244456557989 is a wasteful number, since it uses less digits than its factorization.

244456557989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59291000.

The product of its digits is 435456000, while the sum is 68.

The spelling of 244456557989 in words is "two hundred forty-four billion, four hundred fifty-six million, five hundred fifty-seven thousand, nine hundred eighty-nine".