10981782436 has 27 divisors (see below), whose sum is σ = 19402147947. Its totient is φ = 5438808600.

The previous prime is 10981782433. The next prime is 10981782439. The reversal of 10981782436 is 63428718901.

The square root of 10981782436 is 104794.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (10981782433) and next prime (10981782439).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10981782436.

It is not an unprimeable number, because it can be changed into a prime (10981782433) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31647615 + ... + 31647961.

Almost surely, 2^10981782436 is an apocalyptic number.

10981782436 is the 104794-th square number.

It is an amenable number.

10981782436 is a deficient number, since it is larger than the sum of its proper divisors (8420365511).

10981782436 is an frugal number, since it uses more digits than its factorization.

10981782436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

Multiplying 10981782436 by its sum of digits (49), we get a square (538107339364 = 733558²).

The spelling of 10981782436 in words is "ten billion, nine hundred eighty-one million, seven hundred eighty-two thousand, four hundred thirty-six".