10884971521 has 2 divisors, whose sum is σ = 10884971522. Its totient is φ = 10884971520.

The previous prime is 10884971501. The next prime is 10884971543. The reversal of 10884971521 is 12517948801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7241159025 + 3643812496 = 85095^2 + 60364^2 .

It is an emirp because it is prime and its reverse (12517948801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10884971521 is a prime.

It is not a weakly prime, because it can be changed into another prime (10884971501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5442485760 + 5442485761.

It is an arithmetic number, because the mean of its divisors is an integer number (5442485761).

Almost surely, 2^10884971521 is an apocalyptic number.

It is an amenable number.

10884971521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10884971521 is an equidigital number, since it uses as much as digits as its factorization.

10884971521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 10884971521 in words is "ten billion, eight hundred eighty-four million, nine hundred seventy-one thousand, five hundred twenty-one".