11887820873722 has 8 divisors (see below), whose sum is σ = 17895189429972. Its totient is φ = 5922757730400.

The previous prime is 11887820873683. The next prime is 11887820873749. The reversal of 11887820873722 is 22737802878811.

It can be written as a sum of positive squares in 2 ways, for example, as 11820469724281 + 67351149441 = 3438091^2 + 259521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10576352529 + ... + 10576353652.

Almost surely, 2^{11887820873722} is an apocalyptic number.

11887820873722 is a deficient number, since it is larger than the sum of its proper divisors (6007368556250).

11887820873722 is a wasteful number, since it uses less digits than its factorization.

11887820873722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21152706464.

The product of its (nonzero) digits is 33718272, while the sum is 64.

The spelling of 11887820873722 in words is "eleven trillion, eight hundred eighty-seven billion, eight hundred twenty million, eight hundred seventy-three thousand, seven hundred twenty-two".