17972757553 has 2 divisors, whose sum is σ = 17972757554. Its totient is φ = 17972757552.

The previous prime is 17972757547. The next prime is 17972757577. The reversal of 17972757553 is 35575727971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17648325409 + 324432144 = 132847^2 + 18012^2 .

It is a cyclic number.

It is not a de Polignac number, because 17972757553 - 2⁹ = 17972757041 is a prime.

It is not a weakly prime, because it can be changed into another prime (17972757853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8986378776 + 8986378777.

It is an arithmetic number, because the mean of its divisors is an integer number (8986378777).

Almost surely, 2^17972757553 is an apocalyptic number.

It is an amenable number.

17972757553 is a deficient number, since it is larger than the sum of its proper divisors (1).

17972757553 is an equidigital number, since it uses as much as digits as its factorization.

17972757553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16206750, while the sum is 58.

The spelling of 17972757553 in words is "seventeen billion, nine hundred seventy-two million, seven hundred fifty-seven thousand, five hundred fifty-three".