86180240051 has 4 divisors (see below), whose sum is σ = 87068696232. Its totient is φ = 85291783872.

The previous prime is 86180240021. The next prime is 86180240099. The reversal of 86180240051 is 15004208168.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86180240051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86180239993 and 86180240020.

It is not an unprimeable number, because it can be changed into a prime (86180240021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444227945 + ... + 444228138.

It is an arithmetic number, because the mean of its divisors is an integer number (21767174058).

Almost surely, 2^86180240051 is an apocalyptic number.

86180240051 is a deficient number, since it is larger than the sum of its proper divisors (888456181).

86180240051 is an equidigital number, since it uses as much as digits as its factorization.

86180240051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888456180.

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 86180240051 in words is "eighty-six billion, one hundred eighty million, two hundred forty thousand, fifty-one".