11817670642 has 32 divisors (see below), whose sum is σ = 18556231680. Its totient is φ = 5637916560.

The previous prime is 11817670639. The next prime is 11817670691. The reversal of 11817670642 is 24607671811.

11817670642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 15 ways as a sum of consecutive naturals, for example, 2895159 + ... + 2899237.

It is an arithmetic number, because the mean of its divisors is an integer number (579882240).

Almost surely, 2^11817670642 is an apocalyptic number.

11817670642 is a deficient number, since it is larger than the sum of its proper divisors (6738561038).

11817670642 is a wasteful number, since it uses less digits than its factorization.

11817670642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 11817670642 in words is "eleven billion, eight hundred seventeen million, six hundred seventy thousand, six hundred forty-two".