21322064426387 has 2 divisors, whose sum is σ = 21322064426388. Its totient is φ = 21322064426386.

The previous prime is 21322064426381. The next prime is 21322064426413. The reversal of 21322064426387 is 78362446022312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21322064426387 - 2⁶ = 21322064426323 is a prime.

It is not a weakly prime, because it can be changed into another prime (21322064426381) 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, 10661032213193 + 10661032213194.

It is an arithmetic number, because the mean of its divisors is an integer number (10661032213194).

Almost surely, 2^{21322064426387} is an apocalyptic number.

21322064426387 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322064426387 is an equidigital number, since it uses as much as digits as its factorization.

21322064426387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 21322064426387 in words is "twenty-one trillion, three hundred twenty-two billion, sixty-four million, four hundred twenty-six thousand, three hundred eighty-seven".