19860068087 has 2 divisors, whose sum is σ = 19860068088. Its totient is φ = 19860068086.

The previous prime is 19860068047. The next prime is 19860068101. The reversal of 19860068087 is 78086006891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19860068087 - 2¹⁴ = 19860051703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19860068047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9930034043 + 9930034044.

It is an arithmetic number, because the mean of its divisors is an integer number (9930034044).

Almost surely, 2^19860068087 is an apocalyptic number.

19860068087 is a deficient number, since it is larger than the sum of its proper divisors (1).

19860068087 is an equidigital number, since it uses as much as digits as its factorization.

19860068087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 19860068087 in words is "nineteen billion, eight hundred sixty million, sixty-eight thousand, eighty-seven".