10872573369821 has 2 divisors, whose sum is σ = 10872573369822. Its totient is φ = 10872573369820.

The previous prime is 10872573369809. The next prime is 10872573369841. The reversal of 10872573369821 is 12896337527801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10272473704900 + 600099664921 = 3205070^2 + 774661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10872573369821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10872573369841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5436286684910 + 5436286684911.

It is an arithmetic number, because the mean of its divisors is an integer number (5436286684911).

Almost surely, 2^{10872573369821} is an apocalyptic number.

It is an amenable number.

10872573369821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10872573369821 is an equidigital number, since it uses as much as digits as its factorization.

10872573369821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 10872573369821 in words is "ten trillion, eight hundred seventy-two billion, five hundred seventy-three million, three hundred sixty-nine thousand, eight hundred twenty-one".