17145874574461 has 2 divisors, whose sum is σ = 17145874574462. Its totient is φ = 17145874574460.

The previous prime is 17145874574399. The next prime is 17145874574473. The reversal of 17145874574461 is 16447547854171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11728124883225 + 5417749691236 = 3424635^2 + 2327606^2 .

It is a cyclic number.

It is not a de Polignac number, because 17145874574461 - 2³⁵ = 17111514836093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17145874574393 and 17145874574402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17145874571461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8572937287230 + 8572937287231.

It is an arithmetic number, because the mean of its divisors is an integer number (8572937287231).

Almost surely, 2^{17145874574461} is an apocalyptic number.

It is an amenable number.

17145874574461 is a deficient number, since it is larger than the sum of its proper divisors (1).

17145874574461 is an equidigital number, since it uses as much as digits as its factorization.

17145874574461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105369600, while the sum is 64.

The spelling of 17145874574461 in words is "seventeen trillion, one hundred forty-five billion, eight hundred seventy-four million, five hundred seventy-four thousand, four hundred sixty-one".