244689133357 has 4 divisors (see below), whose sum is σ = 244728778140. Its totient is φ = 244649488576.

The previous prime is 244689133277. The next prime is 244689133369. The reversal of 244689133357 is 753331986442.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85887680356 + 158801453001 = 293066^2 + 398499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244689133357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244689133298 and 244689133307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244689133757) 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, 19813132 + ... + 19825477.

It is an arithmetic number, because the mean of its divisors is an integer number (61182194535).

Almost surely, 2^244689133357 is an apocalyptic number.

It is an amenable number.

244689133357 is a deficient number, since it is larger than the sum of its proper divisors (39644783).

244689133357 is an equidigital number, since it uses as much as digits as its factorization.

244689133357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39644782.

The product of its digits is 13063680, while the sum is 55.

The spelling of 244689133357 in words is "two hundred forty-four billion, six hundred eighty-nine million, one hundred thirty-three thousand, three hundred fifty-seven".