188968653 has 16 divisors (see below), whose sum is σ = 288985600. Its totient is φ = 121914720.

The previous prime is 188968601. The next prime is 188968687. The reversal of 188968653 is 356869881.

It is not a de Polignac number, because 188968653 - 2⁸ = 188968397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 188968653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188966653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112048 + ... + 113721.

It is an arithmetic number, because the mean of its divisors is an integer number (18061600).

Almost surely, 2^188968653 is an apocalyptic number.

It is an amenable number.

188968653 is a deficient number, since it is larger than the sum of its proper divisors (100016947).

188968653 is a wasteful number, since it uses less digits than its factorization.

188968653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225809 (or 225803 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 188968653 is about 13746.5869582235. The cubic root of 188968653 is about 573.8476257474.

The spelling of 188968653 in words is "one hundred eighty-eight million, nine hundred sixty-eight thousand, six hundred fifty-three".