188691868604 has 6 divisors (see below), whose sum is σ = 330210770064. Its totient is φ = 94345934300.

The previous prime is 188691868597. The next prime is 188691868609. The reversal of 188691868604 is 406868196881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188691868609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23586483572 + ... + 23586483579.

It is an arithmetic number, because the mean of its divisors is an integer number (55035128344).

Almost surely, 2^188691868604 is an apocalyptic number.

It is an amenable number.

188691868604 is a deficient number, since it is larger than the sum of its proper divisors (141518901460).

188691868604 is a wasteful number, since it uses less digits than its factorization.

188691868604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47172967155 (or 47172967153 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 65.

The spelling of 188691868604 in words is "one hundred eighty-eight billion, six hundred ninety-one million, eight hundred sixty-eight thousand, six hundred four".