11842564987 has 8 divisors (see below), whose sum is σ = 12929933232. Its totient is φ = 10756992000.

The previous prime is 11842564963. The next prime is 11842564997. The reversal of 11842564987 is 78946524811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11842564987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11842564907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434998 + ... + 461419.

It is an arithmetic number, because the mean of its divisors is an integer number (1616241654).

Almost surely, 2^11842564987 is an apocalyptic number.

11842564987 is a deficient number, since it is larger than the sum of its proper divisors (1087368245).

11842564987 is a wasteful number, since it uses less digits than its factorization.

11842564987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897629.

The product of its digits is 3870720, while the sum is 55.

The spelling of 11842564987 in words is "eleven billion, eight hundred forty-two million, five hundred sixty-four thousand, nine hundred eighty-seven".