86181617976 has 32 divisors (see below), whose sum is σ = 215772333840. Its totient is φ = 28684767488.

The previous prime is 86181617969. The next prime is 86181617981. The reversal of 86181617976 is 67971618168.

It is a super-2 number, since 2×86181617976² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635821 + ... + 2668316.

Almost surely, 2^86181617976 is an apocalyptic number.

It is an amenable number.

86181617976 is an abundant number, since it is smaller than the sum of its proper divisors (129590715864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86181617976 is a wasteful number, since it uses less digits than its factorization.

86181617976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304823 (or 5304819 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 60.

The spelling of 86181617976 in words is "eighty-six billion, one hundred eighty-one million, six hundred seventeen thousand, nine hundred seventy-six".