1125447788880 has 320 divisors, whose sum is σ = 4046794560000. Its totient is φ = 286949634048.

The previous prime is 1125447788827. The next prime is 1125447788891. The reversal of 1125447788880 is 888877445211.

1125447788880 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 4 + 477 + 8 + 88 + 80 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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, 216055716 + ... + 216060924.

It is an arithmetic number, because the mean of its divisors is an integer number (12646233000).

Almost surely, 2^{1125447788880} is an apocalyptic number.

1125447788880 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 1125447788880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023397280000).

1125447788880 is an abundant number, since it is smaller than the sum of its proper divisors (2921346771120).

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

1125447788880 is a wasteful number, since it uses less digits than its factorization.

1125447788880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9603 (or 9591 counting only the distinct ones).

The product of its (nonzero) digits is 32112640, while the sum is 63.

The spelling of 1125447788880 in words is "one trillion, one hundred twenty-five billion, four hundred forty-seven million, seven hundred eighty-eight thousand, eight hundred eighty".