244851978489 has 16 divisors (see below), whose sum is σ = 337423511040. Its totient is φ = 157770766080.

The previous prime is 244851978457. The next prime is 244851978523. The reversal of 244851978489 is 984879158442.

It is not a de Polignac number, because 244851978489 - 2⁵ = 244851978457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (244851978419) 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, 1577584 + ... + 1725825.

It is an arithmetic number, because the mean of its divisors is an integer number (21088969440).

Almost surely, 2^244851978489 is an apocalyptic number.

It is an amenable number.

244851978489 is a deficient number, since it is larger than the sum of its proper divisors (92571532551).

244851978489 is a wasteful number, since it uses less digits than its factorization.

244851978489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304240.

The product of its digits is 185794560, while the sum is 69.

The spelling of 244851978489 in words is "two hundred forty-four billion, eight hundred fifty-one million, nine hundred seventy-eight thousand, four hundred eighty-nine".