188680923085 has 32 divisors (see below), whose sum is σ = 239383434240. Its totient is φ = 142475993088.

The previous prime is 188680923071. The next prime is 188680923089. The reversal of 188680923085 is 580329086881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188680923085 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188680923089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20645637 + ... + 20654773.

It is an arithmetic number, because the mean of its divisors is an integer number (7480732320).

Almost surely, 2^188680923085 is an apocalyptic number.

It is an amenable number.

188680923085 is a deficient number, since it is larger than the sum of its proper divisors (50702511155).

188680923085 is a wasteful number, since it uses less digits than its factorization.

188680923085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11517.

The product of its (nonzero) digits is 6635520, while the sum is 58.

The spelling of 188680923085 in words is "one hundred eighty-eight billion, six hundred eighty million, nine hundred twenty-three thousand, eighty-five".