10971506943 has 80 divisors (see below), whose sum is σ = 17468256960. Its totient is φ = 6848354304.

The previous prime is 10971506941. The next prime is 10971507007. The reversal of 10971506943 is 34960517901.

10971506943 is a `hidden beast` number, since 10 + 97 + 1 + 506 + 9 + 43 = 666.

It is not a de Polignac number, because 10971506943 - 2¹ = 10971506941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10971506941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 19697221 + ... + 19697777.

It is an arithmetic number, because the mean of its divisors is an integer number (218353212).

Almost surely, 2^10971506943 is an apocalyptic number.

10971506943 is a deficient number, since it is larger than the sum of its proper divisors (6496750017).

10971506943 is a wasteful number, since it uses less digits than its factorization.

10971506943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 10971506943 in words is "ten billion, nine hundred seventy-one million, five hundred six thousand, nine hundred forty-three".