244998253648 has 20 divisors (see below), whose sum is σ = 475311199540. Its totient is φ = 122337298944.

The previous prime is 244998253603. The next prime is 244998253649. The reversal of 244998253648 is 846352899442.

It can be written as a sum of positive squares in 2 ways, for example, as 81400654864 + 163597598784 = 285308^2 + 404472^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 244998253648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244998253649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10101753 + ... + 10125976.

It is an arithmetic number, because the mean of its divisors is an integer number (23765559977).

Almost surely, 2^244998253648 is an apocalyptic number.

It is an amenable number.

244998253648 is a deficient number, since it is larger than the sum of its proper divisors (230312945892).

244998253648 is a wasteful number, since it uses less digits than its factorization.

244998253648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20228494 (or 20228488 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 64.

The spelling of 244998253648 in words is "two hundred forty-four billion, nine hundred ninety-eight million, two hundred fifty-three thousand, six hundred forty-eight".