244044442391 has 2 divisors, whose sum is σ = 244044442392. Its totient is φ = 244044442390.

The previous prime is 244044442387. The next prime is 244044442469. The reversal of 244044442391 is 193244440442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244044442391 - 2² = 244044442387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244044442331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122022221195 + 122022221196.

It is an arithmetic number, because the mean of its divisors is an integer number (122022221196).

Almost surely, 2^244044442391 is an apocalyptic number.

244044442391 is a deficient number, since it is larger than the sum of its proper divisors (1).

244044442391 is an equidigital number, since it uses as much as digits as its factorization.

244044442391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 244044442391 in words is "two hundred forty-four billion, forty-four million, four hundred forty-two thousand, three hundred ninety-one".