188457442207 has 2 divisors, whose sum is σ = 188457442208. Its totient is φ = 188457442206.

The previous prime is 188457442157. The next prime is 188457442223. The reversal of 188457442207 is 702244754881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 188457442207 - 2³⁵ = 154097703839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188457442237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94228721103 + 94228721104.

It is an arithmetic number, because the mean of its divisors is an integer number (94228721104).

Almost surely, 2^188457442207 is an apocalyptic number.

188457442207 is a deficient number, since it is larger than the sum of its proper divisors (1).

188457442207 is an equidigital number, since it uses as much as digits as its factorization.

188457442207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4014080, while the sum is 52.

The spelling of 188457442207 in words is "one hundred eighty-eight billion, four hundred fifty-seven million, four hundred forty-two thousand, two hundred seven".