1125982479744 has 576 divisors, whose sum is σ = 3576512394000. Its totient is φ = 338956959744.

The previous prime is 1125982479733. The next prime is 1125982479821. The reversal of 1125982479744 is 4479742895211.

1125982479744 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 98 + 2 + 479 + 74 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1588127262 + ... + 1588127970.

Almost surely, 2^{1125982479744} 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 1125982479744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788256197000).

1125982479744 is an abundant number, since it is smaller than the sum of its proper divisors (2450529914256).

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

1125982479744 is a wasteful number, since it uses less digits than its factorization.

1125982479744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 823 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 1125982479744 in words is "one trillion, one hundred twenty-five billion, nine hundred eighty-two million, four hundred seventy-nine thousand, seven hundred forty-four".