11943900528 has 480 divisors, whose sum is σ = 39754955520. Its totient is φ = 3068190720.

The previous prime is 11943900491. The next prime is 11943900569. The reversal of 11943900528 is 82500934911.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 11943900528.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 143902375 + ... + 143902457.

It is an arithmetic number, because the mean of its divisors is an integer number (82822824).

Almost surely, 2^11943900528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11943900528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19877477760).

11943900528 is an abundant number, since it is smaller than the sum of its proper divisors (27811054992).

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

11943900528 is a wasteful number, since it uses less digits than its factorization.

11943900528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 11943900528 in words is "eleven billion, nine hundred forty-three million, nine hundred thousand, five hundred twenty-eight".