10981826797 has 4 divisors (see below), whose sum is σ = 10992296700. Its totient is φ = 10971356896.

The previous prime is 10981826761. The next prime is 10981826837. The reversal of 10981826797 is 79762818901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8105220841 + 2876605956 = 90029^2 + 53634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10981826797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981826747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5233378 + ... + 5235475.

It is an arithmetic number, because the mean of its divisors is an integer number (2748074175).

Almost surely, 2^10981826797 is an apocalyptic number.

It is an amenable number.

10981826797 is a deficient number, since it is larger than the sum of its proper divisors (10469903).

10981826797 is a wasteful number, since it uses less digits than its factorization.

10981826797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10469902.

The product of its (nonzero) digits is 3048192, while the sum is 58.

The spelling of 10981826797 in words is "ten billion, nine hundred eighty-one million, eight hundred twenty-six thousand, seven hundred ninety-seven".