86117788159 has 48 divisors (see below), whose sum is σ = 96420123360. Its totient is φ = 76851141120.

The previous prime is 86117788123. The next prime is 86117788171. The reversal of 86117788159 is 95188771168.

It is not a de Polignac number, because 86117788159 - 2⁹ = 86117787647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a junction number, because it is equal to n+sod(n) for n = 86117788097 and 86117788106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86117788189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194396592 + ... + 194397034.

It is an arithmetic number, because the mean of its divisors is an integer number (2008752570).

Almost surely, 2^86117788159 is an apocalyptic number.

86117788159 is a deficient number, since it is larger than the sum of its proper divisors (10302335201).

86117788159 is a wasteful number, since it uses less digits than its factorization.

86117788159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 799 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 61.

The spelling of 86117788159 in words is "eighty-six billion, one hundred seventeen million, seven hundred eighty-eight thousand, one hundred fifty-nine".