186157142886 has 32 divisors (see below), whose sum is σ = 437404197888. Its totient is φ = 52071927840.

The previous prime is 186157142861. The next prime is 186157142893. The reversal of 186157142886 is 688241751681.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108482326 + ... + 108484041.

It is an arithmetic number, because the mean of its divisors is an integer number (13668881184).

Almost surely, 2^186157142886 is an apocalyptic number.

186157142886 is an abundant number, since it is smaller than the sum of its proper divisors (251247055002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

186157142886 is a wasteful number, since it uses less digits than its factorization.

186157142886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216966396.

The product of its digits is 5160960, while the sum is 57.

The spelling of 186157142886 in words is "one hundred eighty-six billion, one hundred fifty-seven million, one hundred forty-two thousand, eight hundred eighty-six".