188495959897 has 16 divisors (see below), whose sum is σ = 230188590720. Its totient is φ = 150668875008.

The previous prime is 188495959871. The next prime is 188495959907. The reversal of 188495959897 is 798959594881.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 188495959897 - 2¹¹ = 188495957849 is a prime.

It is a super-5 number, since 5×188495959897⁵ (a number of 58 digits) contains 55555 as substring.

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 188495959897.

It is not an unprimeable number, because it can be changed into a prime (188495953897) 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, 7253083 + ... + 7279024.

It is an arithmetic number, because the mean of its divisors is an integer number (14386786920).

Almost surely, 2^188495959897 is an apocalyptic number.

188495959897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

188495959897 is a deficient number, since it is larger than the sum of its proper divisors (41692630823).

188495959897 is a wasteful number, since it uses less digits than its factorization.

188495959897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14532240.

The product of its digits is 2351462400, while the sum is 82.

The spelling of 188495959897 in words is "one hundred eighty-eight billion, four hundred ninety-five million, nine hundred fifty-nine thousand, eight hundred ninety-seven".