188680019755 has 4 divisors (see below), whose sum is σ = 226416023712. Its totient is φ = 150944015800.

The previous prime is 188680019753. The next prime is 188680019779. The reversal of 188680019755 is 557910086881.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 188680019755 - 2¹ = 188680019753 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 188680019755.

It is not an unprimeable number, because it can be changed into a prime (188680019753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18868001971 + ... + 18868001980.

It is an arithmetic number, because the mean of its divisors is an integer number (56604005928).

Almost surely, 2^188680019755 is an apocalyptic number.

188680019755 is a deficient number, since it is larger than the sum of its proper divisors (37736003957).

188680019755 is an equidigital number, since it uses as much as digits as its factorization.

188680019755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37736003956.

The product of its (nonzero) digits is 4838400, while the sum is 58.

The spelling of 188680019755 in words is "one hundred eighty-eight billion, six hundred eighty million, nineteen thousand, seven hundred fifty-five".