1125524972880 has 720 divisors, whose sum is σ = 4765251254400. Its totient is φ = 233040107520.

The previous prime is 1125524972779. The next prime is 1125524972881. The reversal of 1125524972880 is 882794255211.

It is a happy number.

1125524972880 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 52 + 497 + 28 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125524972881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 178679971 + ... + 178686269.

It is an arithmetic number, because the mean of its divisors is an integer number (6618404520).

Almost surely, 2^{1125524972880} is an apocalyptic number.

1125524972880 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 1125524972880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382625627200).

1125524972880 is an abundant number, since it is smaller than the sum of its proper divisors (3639726281520).

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

1125524972880 is a wasteful number, since it uses less digits than its factorization.

1125524972880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640 (or 6620 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 1125524972880 in words is "one trillion, one hundred twenty-five billion, five hundred twenty-four million, nine hundred seventy-two thousand, eight hundred eighty".