188911362797 has 2 divisors, whose sum is σ = 188911362798. Its totient is φ = 188911362796.

The previous prime is 188911362697. The next prime is 188911362823. The reversal of 188911362797 is 797263119881.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131532430276 + 57378932521 = 362674^2 + 239539^2 .

It is an emirp because it is prime and its reverse (797263119881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188911362797 - 2³⁴ = 171731493613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188911362097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94455681398 + 94455681399.

It is an arithmetic number, because the mean of its divisors is an integer number (94455681399).

Almost surely, 2^188911362797 is an apocalyptic number.

It is an amenable number.

188911362797 is a deficient number, since it is larger than the sum of its proper divisors (1).

188911362797 is an equidigital number, since it uses as much as digits as its factorization.

188911362797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 62.

The spelling of 188911362797 in words is "one hundred eighty-eight billion, nine hundred eleven million, three hundred sixty-two thousand, seven hundred ninety-seven".