188116860929 has 2 divisors, whose sum is σ = 188116860930. Its totient is φ = 188116860928.

The previous prime is 188116860913. The next prime is 188116860931. The reversal of 188116860929 is 929068611881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169299331600 + 18817529329 = 411460^2 + 137177^2 .

It is a cyclic number.

It is not a de Polignac number, because 188116860929 - 2⁴ = 188116860913 is a prime.

Together with 188116860931, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (188116860989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94058430464 + 94058430465.

It is an arithmetic number, because the mean of its divisors is an integer number (94058430465).

Almost surely, 2^188116860929 is an apocalyptic number.

It is an amenable number.

188116860929 is a deficient number, since it is larger than the sum of its proper divisors (1).

188116860929 is an equidigital number, since it uses as much as digits as its factorization.

188116860929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 59.

The spelling of 188116860929 in words is "one hundred eighty-eight billion, one hundred sixteen million, eight hundred sixty thousand, nine hundred twenty-nine".