86181617847 has 16 divisors (see below), whose sum is σ = 123995984000. Its totient is φ = 52928547552.

The previous prime is 86181617843. The next prime is 86181617891. The reversal of 86181617847 is 74871618168.

It is not a de Polignac number, because 86181617847 - 2² = 86181617843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181617843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194753 + ... + 2233674.

It is an arithmetic number, because the mean of its divisors is an integer number (7749749000).

Almost surely, 2^86181617847 is an apocalyptic number.

86181617847 is a deficient number, since it is larger than the sum of its proper divisors (37814366153).

86181617847 is a wasteful number, since it uses less digits than its factorization.

86181617847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428942.

The product of its digits is 3612672, while the sum is 57.

The spelling of 86181617847 in words is "eighty-six billion, one hundred eighty-one million, six hundred seventeen thousand, eight hundred forty-seven".