11281982508637 has 2 divisors, whose sum is σ = 11281982508638. Its totient is φ = 11281982508636.

The previous prime is 11281982508583. The next prime is 11281982508703. The reversal of 11281982508637 is 73680528918211.

11281982508637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7831104124921 + 3450878383716 = 2798411^2 + 1857654^2 .

It is an emirp because it is prime and its reverse (73680528918211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11281982508637 - 2¹¹ = 11281982506589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11281982538637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5640991254318 + 5640991254319.

It is an arithmetic number, because the mean of its divisors is an integer number (5640991254319).

Almost surely, 2^{11281982508637} is an apocalyptic number.

It is an amenable number.

11281982508637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11281982508637 is an equidigital number, since it uses as much as digits as its factorization.

11281982508637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 61.

The spelling of 11281982508637 in words is "eleven trillion, two hundred eighty-one billion, nine hundred eighty-two million, five hundred eight thousand, six hundred thirty-seven".