18727032014387 has 2 divisors, whose sum is σ = 18727032014388. Its totient is φ = 18727032014386.

The previous prime is 18727032014323. The next prime is 18727032014389. The reversal of 18727032014387 is 78341023072781.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18727032014387 - 2⁶ = 18727032014323 is a prime.

Together with 18727032014389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18727032014389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9363516007193 + 9363516007194.

It is an arithmetic number, because the mean of its divisors is an integer number (9363516007194).

Almost surely, 2^{18727032014387} is an apocalyptic number.

18727032014387 is a deficient number, since it is larger than the sum of its proper divisors (1).

18727032014387 is an equidigital number, since it uses as much as digits as its factorization.

18727032014387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 18727032014387 in words is "eighteen trillion, seven hundred twenty-seven billion, thirty-two million, fourteen thousand, three hundred eighty-seven".