1125488671200 has 864 divisors, whose sum is σ = 4221079833600. Its totient is φ = 289399910400.

The previous prime is 1125488671199. The next prime is 1125488671213. The reversal of 1125488671200 is 21768845211.

1125488671200 is a `hidden beast` number, since 1 + 1 + 2 + 548 + 86 + 7 + 1 + 20 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5047034289 + ... + 5047034511.

Almost surely, 2^{1125488671200} is an apocalyptic number.

1125488671200 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 1125488671200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2110539916800).

1125488671200 is an abundant number, since it is smaller than the sum of its proper divisors (3095591162400).

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

1125488671200 is a wasteful number, since it uses less digits than its factorization.

1125488671200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 1125488671200 in words is "one trillion, one hundred twenty-five billion, four hundred eighty-eight million, six hundred seventy-one thousand, two hundred".