11440680678 has 64 divisors (see below), whose sum is σ = 29548224000. Its totient is φ = 3213356832.

The previous prime is 11440680673. The next prime is 11440680703. The reversal of 11440680678 is 87608604411.

11440680678 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440680673) 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, 234193 + ... + 278796.

It is an arithmetic number, because the mean of its divisors is an integer number (461691000).

Almost surely, 2^11440680678 is an apocalyptic number.

11440680678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11440680678 is an abundant number, since it is smaller than the sum of its proper divisors (18107543322).

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

11440680678 is a wasteful number, since it uses less digits than its factorization.

11440680678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513066 (or 513060 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 11440680678 in words is "eleven billion, four hundred forty million, six hundred eighty thousand, six hundred seventy-eight".