186518003980 has 48 divisors (see below), whose sum is σ = 488338050816. Its totient is φ = 58135481280.

The previous prime is 186518003963. The next prime is 186518003983. The reversal of 186518003980 is 89300815681.

186518003980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (186518003983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60556254 + ... + 60559333.

It is an arithmetic number, because the mean of its divisors is an integer number (10173709392).

Almost surely, 2^186518003980 is an apocalyptic number.

186518003980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186518003980 is an abundant number, since it is smaller than the sum of its proper divisors (301820046836).

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

186518003980 is a wasteful number, since it uses less digits than its factorization.

186518003980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121115614 (or 121115612 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 186518003980 in words is "one hundred eighty-six billion, five hundred eighteen million, three thousand, nine hundred eighty".