188617854097 has 2 divisors, whose sum is σ = 188617854098. Its totient is φ = 188617854096.

The previous prime is 188617854053. The next prime is 188617854121. The reversal of 188617854097 is 790458716881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187347002896 + 1270851201 = 432836^2 + 35649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188617854097 is a prime.

It is not a weakly prime, because it can be changed into another prime (188617854497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94308927048 + 94308927049.

It is an arithmetic number, because the mean of its divisors is an integer number (94308927049).

Almost surely, 2^188617854097 is an apocalyptic number.

It is an amenable number.

188617854097 is a deficient number, since it is larger than the sum of its proper divisors (1).

188617854097 is an equidigital number, since it uses as much as digits as its factorization.

188617854097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27095040, while the sum is 64.

The spelling of 188617854097 in words is "one hundred eighty-eight billion, six hundred seventeen million, eight hundred fifty-four thousand, ninety-seven".