86178820183 has 4 divisors (see below), whose sum is σ = 86211233080. Its totient is φ = 86146407288.

The previous prime is 86178820141. The next prime is 86178820213. The reversal of 86178820183 is 38102887168.

It is a happy number.

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-86178820183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86178820183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86178823183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16202460 + ... + 16207777.

It is an arithmetic number, because the mean of its divisors is an integer number (21552808270).

Almost surely, 2^86178820183 is an apocalyptic number.

86178820183 is a deficient number, since it is larger than the sum of its proper divisors (32412897).

86178820183 is a wasteful number, since it uses less digits than its factorization.

86178820183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32412896.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The spelling of 86178820183 in words is "eighty-six billion, one hundred seventy-eight million, eight hundred twenty thousand, one hundred eighty-three".