11810681328 has 20 divisors (see below), whose sum is σ = 30510926888. Its totient is φ = 3936893760.

The previous prime is 11810681321. The next prime is 11810681341. The reversal of 11810681328 is 82318601811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11810681321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123027883 + ... + 123027978.

Almost surely, 2^11810681328 is an apocalyptic number.

It is an amenable number.

11810681328 is an abundant number, since it is smaller than the sum of its proper divisors (18700245560).

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

11810681328 is a wasteful number, since it uses less digits than its factorization.

11810681328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246055872 (or 246055866 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The spelling of 11810681328 in words is "eleven billion, eight hundred ten million, six hundred eighty-one thousand, three hundred twenty-eight".