244666348781 has 2 divisors, whose sum is σ = 244666348782. Its totient is φ = 244666348780.

The previous prime is 244666348757. The next prime is 244666348799. The reversal of 244666348781 is 187843666442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170759032900 + 73907315881 = 413230^2 + 271859^2 .

It is a cyclic number.

It is not a de Polignac number, because 244666348781 - 2²⁶ = 244599239917 is a prime.

It is a super-2 number, since 2×244666348781² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244666348781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244666348081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122333174390 + 122333174391.

It is an arithmetic number, because the mean of its divisors is an integer number (122333174391).

Almost surely, 2^244666348781 is an apocalyptic number.

It is an amenable number.

244666348781 is a deficient number, since it is larger than the sum of its proper divisors (1).

244666348781 is an equidigital number, since it uses as much as digits as its factorization.

244666348781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37158912, while the sum is 59.

The spelling of 244666348781 in words is "two hundred forty-four billion, six hundred sixty-six million, three hundred forty-eight thousand, seven hundred eighty-one".