11315990688 has 24 divisors (see below), whose sum is σ = 29704475808. Its totient is φ = 3771996864.

The previous prime is 11315990677. The next prime is 11315990711. The reversal of 11315990688 is 88609951311.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11315990688.

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 3 ways as a sum of consecutive naturals, for example, 58937356 + ... + 58937547.

It is an arithmetic number, because the mean of its divisors is an integer number (1237686492).

Almost surely, 2^11315990688 is an apocalyptic number.

It is an amenable number.

11315990688 is an abundant number, since it is smaller than the sum of its proper divisors (18388485120).

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

11315990688 is a wasteful number, since it uses less digits than its factorization.

11315990688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117874916 (or 117874908 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 51.

The spelling of 11315990688 in words is "eleven billion, three hundred fifteen million, nine hundred ninety thousand, six hundred eighty-eight".