188693296129 has 16 divisors (see below), whose sum is σ = 206415325312. Its totient is φ = 171439244928.

The previous prime is 188693296123. The next prime is 188693296133. The reversal of 188693296129 is 921692396881.

It is a cyclic number.

It is not a de Polignac number, because 188693296129 - 2¹⁷ = 188693165057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188693296123) 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, 258022 + ... + 666304.

It is an arithmetic number, because the mean of its divisors is an integer number (12900957832).

Almost surely, 2^188693296129 is an apocalyptic number.

It is an amenable number.

188693296129 is a deficient number, since it is larger than the sum of its proper divisors (17722029183).

188693296129 is a wasteful number, since it uses less digits than its factorization.

188693296129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408856.

The product of its digits is 20155392, while the sum is 64.

The spelling of 188693296129 in words is "one hundred eighty-eight billion, six hundred ninety-three million, two hundred ninety-six thousand, one hundred twenty-nine".