18031413527 has 2 divisors, whose sum is σ = 18031413528. Its totient is φ = 18031413526.

The previous prime is 18031413437. The next prime is 18031413529. The reversal of 18031413527 is 72531413081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18031413527 - 2⁸ = 18031413271 is a prime.

Together with 18031413529, 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 (18031413529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9015706763 + 9015706764.

It is an arithmetic number, because the mean of its divisors is an integer number (9015706764).

Almost surely, 2^18031413527 is an apocalyptic number.

18031413527 is a deficient number, since it is larger than the sum of its proper divisors (1).

18031413527 is an equidigital number, since it uses as much as digits as its factorization.

18031413527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 18031413527 in words is "eighteen billion, thirty-one million, four hundred thirteen thousand, five hundred twenty-seven".