244147163189 has 2 divisors, whose sum is σ = 244147163190. Its totient is φ = 244147163188.

The previous prime is 244147163147. The next prime is 244147163207. The reversal of 244147163189 is 981361741442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235969578289 + 8177584900 = 485767^2 + 90430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244147163189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244147163389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122073581594 + 122073581595.

It is an arithmetic number, because the mean of its divisors is an integer number (122073581595).

Almost surely, 2^244147163189 is an apocalyptic number.

It is an amenable number.

244147163189 is a deficient number, since it is larger than the sum of its proper divisors (1).

244147163189 is an equidigital number, since it uses as much as digits as its factorization.

244147163189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The spelling of 244147163189 in words is "two hundred forty-four billion, one hundred forty-seven million, one hundred sixty-three thousand, one hundred eighty-nine".