87170027159 has 2 divisors, whose sum is σ = 87170027160. Its totient is φ = 87170027158.

The previous prime is 87170027149. The next prime is 87170027239. The reversal of 87170027159 is 95172007178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87170027159 - 2²⁸ = 86901591703 is a prime.

It is a super-2 number, since 2×87170027159² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87170027149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43585013579 + 43585013580.

It is an arithmetic number, because the mean of its divisors is an integer number (43585013580).

Almost surely, 2^87170027159 is an apocalyptic number.

87170027159 is a deficient number, since it is larger than the sum of its proper divisors (1).

87170027159 is an equidigital number, since it uses as much as digits as its factorization.

87170027159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 47.

The spelling of 87170027159 in words is "eighty-seven billion, one hundred seventy million, twenty-seven thousand, one hundred fifty-nine".