188732454797 has 2 divisors, whose sum is σ = 188732454798. Its totient is φ = 188732454796.

The previous prime is 188732454791. The next prime is 188732454821. The reversal of 188732454797 is 797454237881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187650110596 + 1082344201 = 433186^2 + 32899^2 .

It is a cyclic number.

It is not a de Polignac number, because 188732454797 - 2⁸ = 188732454541 is a prime.

It is a super-2 number, since 2×188732454797² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188732454791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94366227398 + 94366227399.

It is an arithmetic number, because the mean of its divisors is an integer number (94366227399).

Almost surely, 2^188732454797 is an apocalyptic number.

It is an amenable number.

188732454797 is a deficient number, since it is larger than the sum of its proper divisors (1).

188732454797 is an equidigital number, since it uses as much as digits as its factorization.

188732454797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94832640, while the sum is 65.

The spelling of 188732454797 in words is "one hundred eighty-eight billion, seven hundred thirty-two million, four hundred fifty-four thousand, seven hundred ninety-seven".