18529055639 has 2 divisors, whose sum is σ = 18529055640. Its totient is φ = 18529055638.

The previous prime is 18529055609. The next prime is 18529055641. The reversal of 18529055639 is 93655092581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18529055639 - 2⁸ = 18529055383 is a prime.

Together with 18529055641, 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 (18529055609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9264527819 + 9264527820.

It is an arithmetic number, because the mean of its divisors is an integer number (9264527820).

Almost surely, 2^18529055639 is an apocalyptic number.

18529055639 is a deficient number, since it is larger than the sum of its proper divisors (1).

18529055639 is an equidigital number, since it uses as much as digits as its factorization.

18529055639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 53.

The spelling of 18529055639 in words is "eighteen billion, five hundred twenty-nine million, fifty-five thousand, six hundred thirty-nine".