17972579593 has 2 divisors, whose sum is σ = 17972579594. Its totient is φ = 17972579592.

The previous prime is 17972579501. The next prime is 17972579629. The reversal of 17972579593 is 39597527971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15363106704 + 2609472889 = 123948^2 + 51083^2 .

It is a cyclic number.

It is not a de Polignac number, because 17972579593 - 2²¹ = 17970482441 is a prime.

It is not a weakly prime, because it can be changed into another prime (17972559593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8986289796 + 8986289797.

It is an arithmetic number, because the mean of its divisors is an integer number (8986289797).

Almost surely, 2^17972579593 is an apocalyptic number.

It is an amenable number.

17972579593 is a deficient number, since it is larger than the sum of its proper divisors (1).

17972579593 is an equidigital number, since it uses as much as digits as its factorization.

17972579593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37507050, while the sum is 64.

The spelling of 17972579593 in words is "seventeen billion, nine hundred seventy-two million, five hundred seventy-nine thousand, five hundred ninety-three".