1125738494388 has 72 divisors (see below), whose sum is σ = 2947759487400. Its totient is φ = 361812116736.

The previous prime is 1125738494357. The next prime is 1125738494407. The reversal of 1125738494388 is 8834948375211.

1125738494388 is a `hidden beast` number, since 1 + 1 + 25 + 73 + 84 + 94 + 388 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 799482763044 + 326255731344 = 894138^2 + 571188^2 .

It is a super-2 number, since 2×1125738494388² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29718 + ... + 1500786.

Almost surely, 2^{1125738494388} is an apocalyptic number.

1125738494388 is a gapful number since it is divisible by the number (18) 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 1125738494388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473879743700).

1125738494388 is an abundant number, since it is smaller than the sum of its proper divisors (1822020993012).

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

1125738494388 is a wasteful number, since it uses less digits than its factorization.

1125738494388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471841 (or 1471836 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 1125738494388 in words is "one trillion, one hundred twenty-five billion, seven hundred thirty-eight million, four hundred ninety-four thousand, three hundred eighty-eight".