86181623553 has 32 divisors (see below), whose sum is σ = 123211579392. Its totient is φ = 53442417600.

The previous prime is 86181623551. The next prime is 86181623569. The reversal of 86181623553 is 35532618168.

It is not a de Polignac number, because 86181623553 - 2¹ = 86181623551 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5381388 + ... + 5397378.

It is an arithmetic number, because the mean of its divisors is an integer number (3850361856).

Almost surely, 2^86181623553 is an apocalyptic number.

It is an amenable number.

86181623553 is a deficient number, since it is larger than the sum of its proper divisors (37029955839).

86181623553 is a wasteful number, since it uses less digits than its factorization.

86181623553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18165.

The product of its digits is 1036800, while the sum is 48.

The spelling of 86181623553 in words is "eighty-six billion, one hundred eighty-one million, six hundred twenty-three thousand, five hundred fifty-three".