86181623552 has 36 divisors (see below), whose sum is σ = 172290374760. Its totient is φ = 43024739328.

The previous prime is 86181623551. The next prime is 86181623569. The reversal of 86181623552 is 25532618168.

It is a junction number, because it is equal to n+sod(n) for n = 86181623497 and 86181623506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181623551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 90602 + ... + 424937.

Almost surely, 2^86181623552 is an apocalyptic number.

It is an amenable number.

86181623552 is a deficient number, since it is larger than the sum of its proper divisors (86108751208).

86181623552 is an equidigital number, since it uses as much as digits as its factorization.

86181623552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516208 (or 516194 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The spelling of 86181623552 in words is "eighty-six billion, one hundred eighty-one million, six hundred twenty-three thousand, five hundred fifty-two".