17697054319891 has 2 divisors, whose sum is σ = 17697054319892. Its totient is φ = 17697054319890.

The previous prime is 17697054319853. The next prime is 17697054319957. The reversal of 17697054319891 is 19891345079671.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17697054319891 - 2⁹ = 17697054319379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17697054319891.

It is not a weakly prime, because it can be changed into another prime (17697054319831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8848527159945 + 8848527159946.

It is an arithmetic number, because the mean of its divisors is an integer number (8848527159946).

Almost surely, 2^{17697054319891} is an apocalyptic number.

17697054319891 is a deficient number, since it is larger than the sum of its proper divisors (1).

17697054319891 is an equidigital number, since it uses as much as digits as its factorization.

17697054319891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102876480, while the sum is 70.

The spelling of 17697054319891 in words is "seventeen trillion, six hundred ninety-seven billion, fifty-four million, three hundred nineteen thousand, eight hundred ninety-one".