646050123010423 has 2 divisors, whose sum is σ = 646050123010424. Its totient is φ = 646050123010422.

The previous prime is 646050123010421. The next prime is 646050123010427. The reversal of 646050123010423 is 324010321050646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 646050123010423 - 2¹ = 646050123010421 is a prime.

It is a super-2 number, since 2×646050123010423² (a number of 30 digits) contains 22 as substring.

Together with 646050123010421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (646050123010421) 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, 323025061505211 + 323025061505212.

It is an arithmetic number, because the mean of its divisors is an integer number (323025061505212).

Almost surely, 2^{646050123010423} is an apocalyptic number.

646050123010423 is a deficient number, since it is larger than the sum of its proper divisors (1).

646050123010423 is an equidigital number, since it uses as much as digits as its factorization.

646050123010423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 646050123010423 in words is "six hundred forty-six trillion, fifty billion, one hundred twenty-three million, ten thousand, four hundred twenty-three".