188308738486 has 12 divisors (see below), whose sum is σ = 310475978316. Its totient is φ = 85594881020.

The previous prime is 188308738481. The next prime is 188308738487. The reversal of 188308738486 is 684837803881.

It is a happy number.

188308738486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188308738481) 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 5 ways as a sum of consecutive naturals, for example, 389067400 + ... + 389067883.

It is an arithmetic number, because the mean of its divisors is an integer number (25872998193).

Almost surely, 2^188308738486 is an apocalyptic number.

188308738486 is a deficient number, since it is larger than the sum of its proper divisors (122167239830).

188308738486 is a wasteful number, since it uses less digits than its factorization.

188308738486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778135307 (or 778135296 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 64.

The spelling of 188308738486 in words is "one hundred eighty-eight billion, three hundred eight million, seven hundred thirty-eight thousand, four hundred eighty-six".