244707340772821 has 2 divisors, whose sum is σ = 244707340772822. Its totient is φ = 244707340772820.

The previous prime is 244707340772801. The next prime is 244707340772831. The reversal of 244707340772821 is 128277043707442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130373806878225 + 114333533894596 = 11418135^2 + 10692686^2 .

It is a cyclic number.

It is not a de Polignac number, because 244707340772821 - 2²⁷ = 244707206555093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244707340772801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122353670386410 + 122353670386411.

It is an arithmetic number, because the mean of its divisors is an integer number (122353670386411).

Almost surely, 2^{244707340772821} is an apocalyptic number.

It is an amenable number.

244707340772821 is a deficient number, since it is larger than the sum of its proper divisors (1).

244707340772821 is an equidigital number, since it uses as much as digits as its factorization.

244707340772821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29503488, while the sum is 58.

The spelling of 244707340772821 in words is "two hundred forty-four trillion, seven hundred seven billion, three hundred forty million, seven hundred seventy-two thousand, eight hundred twenty-one".