10981638974 has 32 divisors (see below), whose sum is σ = 17156689920. Its totient is φ = 5265463392.

The previous prime is 10981638959. The next prime is 10981639021. The reversal of 10981638974 is 47983618901.

10981638974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6023027 + ... + 6024849.

It is an arithmetic number, because the mean of its divisors is an integer number (536146560).

Almost surely, 2^10981638974 is an apocalyptic number.

10981638974 is a deficient number, since it is larger than the sum of its proper divisors (6175050946).

10981638974 is a wasteful number, since it uses less digits than its factorization.

10981638974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 10981638974 in words is "ten billion, nine hundred eighty-one million, six hundred thirty-eight thousand, nine hundred seventy-four".