188945073906 has 32 divisors (see below), whose sum is σ = 401717534400. Its totient is φ = 59076100800.

The previous prime is 188945073881. The next prime is 188945073931. The reversal of 188945073906 is 609370549881.

188945073906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (188945073881) and next prime (188945073931).

It is a self number, because there is not a number n which added to its sum of digits gives 188945073906.

It is an unprimeable number.

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, 8193501 + ... + 8216528.

It is an arithmetic number, because the mean of its divisors is an integer number (12553672950).

Almost surely, 2^188945073906 is an apocalyptic number.

188945073906 is an abundant number, since it is smaller than the sum of its proper divisors (212772460494).

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

188945073906 is a wasteful number, since it uses less digits than its factorization.

188945073906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410154.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 188945073906 in words is "one hundred eighty-eight billion, nine hundred forty-five million, seventy-three thousand, nine hundred six".