18068344951 has 2 divisors, whose sum is σ = 18068344952. Its totient is φ = 18068344950.

The previous prime is 18068344913. The next prime is 18068344961. The reversal of 18068344951 is 15944386081.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18068344951 - 2²⁹ = 17531474039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18068344895 and 18068344904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18068344961) 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, 9034172475 + 9034172476.

It is an arithmetic number, because the mean of its divisors is an integer number (9034172476).

Almost surely, 2^18068344951 is an apocalyptic number.

18068344951 is a deficient number, since it is larger than the sum of its proper divisors (1).

18068344951 is an equidigital number, since it uses as much as digits as its factorization.

18068344951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 18068344951 in words is "eighteen billion, sixty-eight million, three hundred forty-four thousand, nine hundred fifty-one".