1789623138241 has 2 divisors, whose sum is σ = 1789623138242. Its totient is φ = 1789623138240.

The previous prime is 1789623138229. The next prime is 1789623138283. The reversal of 1789623138241 is 1428313269871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1511598939841 + 278024198400 = 1229471^2 + 527280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1789623138241 - 2²⁵ = 1789589583809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1789623138211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894811569120 + 894811569121.

It is an arithmetic number, because the mean of its divisors is an integer number (894811569121).

Almost surely, 2^{1789623138241} is an apocalyptic number.

It is an amenable number.

1789623138241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1789623138241 is an equidigital number, since it uses as much as digits as its factorization.

1789623138241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 55.

The spelling of 1789623138241 in words is "one trillion, seven hundred eighty-nine billion, six hundred twenty-three million, one hundred thirty-eight thousand, two hundred forty-one".