11952378864 has 30 divisors (see below), whose sum is σ = 33450060696. Its totient is φ = 3984126240.

The previous prime is 11952378863. The next prime is 11952378869. The reversal of 11952378864 is 46887325911.

11952378864 is a `hidden beast` number, since 1 + 195 + 2 + 378 + 86 + 4 = 666.

11952378864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11952378864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11952378863) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 41501172 + ... + 41501459.

Almost surely, 2^11952378864 is an apocalyptic number.

It is an amenable number.

11952378864 is an abundant number, since it is smaller than the sum of its proper divisors (21497681832).

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

11952378864 is a wasteful number, since it uses less digits than its factorization.

11952378864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83002645 (or 83002636 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 11952378864 in words is "eleven billion, nine hundred fifty-two million, three hundred seventy-eight thousand, eight hundred sixty-four".