10881972718928 has 20 divisors (see below), whose sum is σ = 21085120192500. Its totient is φ = 5440651378944.

The previous prime is 10881972718891. The next prime is 10881972718933. The reversal of 10881972718928 is 82981727918801.

It can be written as a sum of positive squares in 2 ways, for example, as 7507227364624 + 3374745354304 = 2739932^2 + 1837048^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20668175 + ... + 21188142.

It is an arithmetic number, because the mean of its divisors is an integer number (1054256009625).

Almost surely, 2^{10881972718928} is an apocalyptic number.

It is an amenable number.

10881972718928 is a deficient number, since it is larger than the sum of its proper divisors (10203147473572).

10881972718928 is a wasteful number, since it uses less digits than its factorization.

10881972718928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41872574 (or 41872568 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 71.

The spelling of 10881972718928 in words is "ten trillion, eight hundred eighty-one billion, nine hundred seventy-two million, seven hundred eighteen thousand, nine hundred twenty-eight".