21792845353 has 2 divisors, whose sum is σ = 21792845354. Its totient is φ = 21792845352.

The previous prime is 21792845317. The next prime is 21792845357. The reversal of 21792845353 is 35354829712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21589012624 + 203832729 = 146932^2 + 14277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21792845353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21792845297 and 21792845306.

It is not a weakly prime, because it can be changed into another prime (21792845357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10896422676 + 10896422677.

It is an arithmetic number, because the mean of its divisors is an integer number (10896422677).

Almost surely, 2^21792845353 is an apocalyptic number.

It is an amenable number.

21792845353 is a deficient number, since it is larger than the sum of its proper divisors (1).

21792845353 is an equidigital number, since it uses as much as digits as its factorization.

21792845353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The spelling of 21792845353 in words is "twenty-one billion, seven hundred ninety-two million, eight hundred forty-five thousand, three hundred fifty-three".