186839713018 has 16 divisors (see below), whose sum is σ = 339137630784. Its totient is φ = 75363917760.

The previous prime is 186839713013. The next prime is 186839713031. The reversal of 186839713018 is 810317938681.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 186839713018.

It is not an unprimeable number, because it can be changed into a prime (186839713013) 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 7 ways as a sum of consecutive naturals, for example, 392520168 + ... + 392520643.

It is an arithmetic number, because the mean of its divisors is an integer number (21196101924).

Almost surely, 2^186839713018 is an apocalyptic number.

186839713018 is a deficient number, since it is larger than the sum of its proper divisors (152297917766).

186839713018 is a wasteful number, since it uses less digits than its factorization.

186839713018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785040837.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 186839713018 in words is "one hundred eighty-six billion, eight hundred thirty-nine million, seven hundred thirteen thousand, eighteen".