11681403508 has 48 divisors (see below), whose sum is σ = 21369406464. Its totient is φ = 5581105920.

The previous prime is 11681403473. The next prime is 11681403527. The reversal of 11681403508 is 80530418611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3249360 + ... + 3252952.

It is an arithmetic number, because the mean of its divisors is an integer number (445195968).

Almost surely, 2^11681403508 is an apocalyptic number.

It is an amenable number.

11681403508 is a deficient number, since it is larger than the sum of its proper divisors (9688002956).

11681403508 is a wasteful number, since it uses less digits than its factorization.

11681403508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 11681403508 in words is "eleven billion, six hundred eighty-one million, four hundred three thousand, five hundred eight".