18572827087 has 2 divisors, whose sum is σ = 18572827088. Its totient is φ = 18572827086.

The previous prime is 18572827057. The next prime is 18572827093. The reversal of 18572827087 is 78072827581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18572827087 - 2¹¹ = 18572825039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18572827057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9286413543 + 9286413544.

It is an arithmetic number, because the mean of its divisors is an integer number (9286413544).

Almost surely, 2^18572827087 is an apocalyptic number.

18572827087 is a deficient number, since it is larger than the sum of its proper divisors (1).

18572827087 is an equidigital number, since it uses as much as digits as its factorization.

18572827087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3512320, while the sum is 55.

The spelling of 18572827087 in words is "eighteen billion, five hundred seventy-two million, eight hundred twenty-seven thousand, eighty-seven".