18067568423 has 2 divisors, whose sum is σ = 18067568424. Its totient is φ = 18067568422.

The previous prime is 18067568411. The next prime is 18067568437. The reversal of 18067568423 is 32486576081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18067568423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18067568923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033784211 + 9033784212.

It is an arithmetic number, because the mean of its divisors is an integer number (9033784212).

Almost surely, 2^18067568423 is an apocalyptic number.

18067568423 is a deficient number, since it is larger than the sum of its proper divisors (1).

18067568423 is an equidigital number, since it uses as much as digits as its factorization.

18067568423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 18067568423 in words is "eighteen billion, sixty-seven million, five hundred sixty-eight thousand, four hundred twenty-three".