11850856172 has 24 divisors (see below), whose sum is σ = 21186217920. Its totient is φ = 5797722240.

The previous prime is 11850856163. The next prime is 11850856183. The reversal of 11850856172 is 27165805811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916472 + ... + 929312.

It is an arithmetic number, because the mean of its divisors is an integer number (882759080).

Almost surely, 2^11850856172 is an apocalyptic number.

It is an amenable number.

11850856172 is a deficient number, since it is larger than the sum of its proper divisors (9335361748).

11850856172 is a wasteful number, since it uses less digits than its factorization.

11850856172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17801 (or 17799 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 44.

The spelling of 11850856172 in words is "eleven billion, eight hundred fifty million, eight hundred fifty-six thousand, one hundred seventy-two".