18700170010087 has 2 divisors, whose sum is σ = 18700170010088. Its totient is φ = 18700170010086.

The previous prime is 18700170010061. The next prime is 18700170010111. The reversal of 18700170010087 is 78001007100781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18700170010087 - 2²⁷ = 18700035792359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18700170010007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9350085005043 + 9350085005044.

It is an arithmetic number, because the mean of its divisors is an integer number (9350085005044).

Almost surely, 2^{18700170010087} is an apocalyptic number.

18700170010087 is a deficient number, since it is larger than the sum of its proper divisors (1).

18700170010087 is an equidigital number, since it uses as much as digits as its factorization.

18700170010087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952, while the sum is 40.

The spelling of 18700170010087 in words is "eighteen trillion, seven hundred billion, one hundred seventy million, ten thousand, eighty-seven".