244444440061 has 2 divisors, whose sum is σ = 244444440062. Its totient is φ = 244444440060.

The previous prime is 244444440049. The next prime is 244444440113. The reversal of 244444440061 is 160044444442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154095502500 + 90348937561 = 392550^2 + 300581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244444440061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 244444440061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244444440041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122222220030 + 122222220031.

It is an arithmetic number, because the mean of its divisors is an integer number (122222220031).

Almost surely, 2^244444440061 is an apocalyptic number.

It is an amenable number.

244444440061 is a deficient number, since it is larger than the sum of its proper divisors (1).

244444440061 is an equidigital number, since it uses as much as digits as its factorization.

244444440061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196608, while the sum is 37.

The spelling of 244444440061 in words is "two hundred forty-four billion, four hundred forty-four million, four hundred forty thousand, sixty-one".