244641233569 has 2 divisors, whose sum is σ = 244641233570. Its totient is φ = 244641233568.

The previous prime is 244641233539. The next prime is 244641233587. The reversal of 244641233569 is 965332146442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223525656225 + 21115577344 = 472785^2 + 145312^2 .

It is a cyclic number.

It is not a de Polignac number, because 244641233569 - 2¹¹ = 244641231521 is a prime.

It is a super-2 number, since 2×244641233569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (244641233539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122320616784 + 122320616785.

It is an arithmetic number, because the mean of its divisors is an integer number (122320616785).

Almost surely, 2^244641233569 is an apocalyptic number.

It is an amenable number.

244641233569 is a deficient number, since it is larger than the sum of its proper divisors (1).

244641233569 is an equidigital number, since it uses as much as digits as its factorization.

244641233569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 49.

The spelling of 244641233569 in words is "two hundred forty-four billion, six hundred forty-one million, two hundred thirty-three thousand, five hundred sixty-nine".