19783226818241 has 2 divisors, whose sum is σ = 19783226818242. Its totient is φ = 19783226818240.

The previous prime is 19783226818231. The next prime is 19783226818247. The reversal of 19783226818241 is 14281862238791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11731275759025 + 8051951059216 = 3425095^2 + 2837596^2 .

It is a cyclic number.

It is not a de Polignac number, because 19783226818241 - 2¹⁴ = 19783226801857 is a prime.

It is not a weakly prime, because it can be changed into another prime (19783226818247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9891613409120 + 9891613409121.

It is an arithmetic number, because the mean of its divisors is an integer number (9891613409121).

Almost surely, 2^{19783226818241} is an apocalyptic number.

It is an amenable number.

19783226818241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19783226818241 is an equidigital number, since it uses as much as digits as its factorization.

19783226818241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18579456, while the sum is 62.

The spelling of 19783226818241 in words is "nineteen trillion, seven hundred eighty-three billion, two hundred twenty-six million, eight hundred eighteen thousand, two hundred forty-one".