11400875520 has 640 divisors, whose sum is σ = 41483059200. Its totient is φ = 2656862208.

The previous prime is 11400875509. The next prime is 11400875533. The reversal of 11400875520 is 2557800411.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144314841 + ... + 144314919.

It is an arithmetic number, because the mean of its divisors is an integer number (64817280).

Almost surely, 2^11400875520 is an apocalyptic number.

11400875520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11400875520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20741529600).

11400875520 is an abundant number, since it is smaller than the sum of its proper divisors (30082183680).

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

11400875520 is a wasteful number, since it uses less digits than its factorization.

11400875520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The spelling of 11400875520 in words is "eleven billion, four hundred million, eight hundred seventy-five thousand, five hundred twenty".