23521422412489 has 2 divisors, whose sum is σ = 23521422412490. Its totient is φ = 23521422412488.

The previous prime is 23521422412487. The next prime is 23521422412541. The reversal of 23521422412489 is 98421422412532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19228619652025 + 4292802760464 = 4385045^2 + 2071908^2 .

It is a cyclic number.

It is not a de Polignac number, because 23521422412489 - 2¹ = 23521422412487 is a prime.

Together with 23521422412487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23521422412487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760711206244 + 11760711206245.

It is an arithmetic number, because the mean of its divisors is an integer number (11760711206245).

Almost surely, 2^{23521422412489} is an apocalyptic number.

It is an amenable number.

23521422412489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23521422412489 is an equidigital number, since it uses as much as digits as its factorization.

23521422412489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 49.

The spelling of 23521422412489 in words is "twenty-three trillion, five hundred twenty-one billion, four hundred twenty-two million, four hundred twelve thousand, four hundred eighty-nine".