11081275478 has 64 divisors (see below), whose sum is σ = 22603069440. Its totient is φ = 3946516992.

The previous prime is 11081275477. The next prime is 11081275487. The reversal of 11081275478 is 87457218011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081275477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6698 + ... + 149021.

It is an arithmetic number, because the mean of its divisors is an integer number (353172960).

Almost surely, 2^11081275478 is an apocalyptic number.

11081275478 is an abundant number, since it is smaller than the sum of its proper divisors (11521793962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11081275478 is a wasteful number, since it uses less digits than its factorization.

11081275478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155781.

The product of its (nonzero) digits is 125440, while the sum is 44.

The spelling of 11081275478 in words is "eleven billion, eighty-one million, two hundred seventy-five thousand, four hundred seventy-eight".