18097436087 has 2 divisors, whose sum is σ = 18097436088. Its totient is φ = 18097436086.

The previous prime is 18097436069. The next prime is 18097436191. The reversal of 18097436087 is 78063479081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18097436087 - 2⁸ = 18097435831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18097436017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9048718043 + 9048718044.

It is an arithmetic number, because the mean of its divisors is an integer number (9048718044).

Almost surely, 2^18097436087 is an apocalyptic number.

18097436087 is a deficient number, since it is larger than the sum of its proper divisors (1).

18097436087 is an equidigital number, since it uses as much as digits as its factorization.

18097436087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 18097436087 in words is "eighteen billion, ninety-seven million, four hundred thirty-six thousand, eighty-seven".