18038488007 has 2 divisors, whose sum is σ = 18038488008. Its totient is φ = 18038488006.

The previous prime is 18038487997. The next prime is 18038488009. The reversal of 18038488007 is 70088483081.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18038488007 - 2²² = 18034293703 is a prime.

Together with 18038488009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18038488009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9019244003 + 9019244004.

It is an arithmetic number, because the mean of its divisors is an integer number (9019244004).

Almost surely, 2^18038488007 is an apocalyptic number.

18038488007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18038488007 is an equidigital number, since it uses as much as digits as its factorization.

18038488007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 18038488007 in words is "eighteen billion, thirty-eight million, four hundred eighty-eight thousand, seven".