18746042467 has 2 divisors, whose sum is σ = 18746042468. Its totient is φ = 18746042466.

The previous prime is 18746042423. The next prime is 18746042473. The reversal of 18746042467 is 76424064781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18746042467 - 2³¹ = 16598558819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18746042467.

It is not a weakly prime, because it can be changed into another prime (18746042407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9373021233 + 9373021234.

It is an arithmetic number, because the mean of its divisors is an integer number (9373021234).

Almost surely, 2^18746042467 is an apocalyptic number.

18746042467 is a deficient number, since it is larger than the sum of its proper divisors (1).

18746042467 is an equidigital number, since it uses as much as digits as its factorization.

18746042467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 18746042467 in words is "eighteen billion, seven hundred forty-six million, forty-two thousand, four hundred sixty-seven".