86181617895 has 64 divisors (see below), whose sum is σ = 152604601344. Its totient is φ = 41309706240.

The previous prime is 86181617891. The next prime is 86181617927. The reversal of 86181617895 is 59871618168.

It is not a de Polignac number, because 86181617895 - 2² = 86181617891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181617891) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3583260 + ... + 3607230.

It is an arithmetic number, because the mean of its divisors is an integer number (2384446896).

Almost surely, 2^86181617895 is an apocalyptic number.

86181617895 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86181617895 is a deficient number, since it is larger than the sum of its proper divisors (66422983449).

86181617895 is a wasteful number, since it uses less digits than its factorization.

86181617895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24632.

The product of its digits is 5806080, while the sum is 60.

The spelling of 86181617895 in words is "eighty-six billion, one hundred eighty-one million, six hundred seventeen thousand, eight hundred ninety-five".