11930115688 has 8 divisors (see below), whose sum is σ = 22368966930. Its totient is φ = 5965057840.

The previous prime is 11930115679. The next prime is 11930115731. The reversal of 11930115688 is 88651103911.

11930115688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11159387044 + 770728644 = 105638^2 + 27762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 745632223 + ... + 745632238.

Almost surely, 2^11930115688 is an apocalyptic number.

It is an amenable number.

11930115688 is a deficient number, since it is larger than the sum of its proper divisors (10438851242).

11930115688 is a wasteful number, since it uses less digits than its factorization.

11930115688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491264467 (or 1491264463 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The spelling of 11930115688 in words is "eleven billion, nine hundred thirty million, one hundred fifteen thousand, six hundred eighty-eight".