1128748907520 has 1056 divisors, whose sum is σ = 4487099984640. Its totient is φ = 259900047360.

The previous prime is 1128748907513. The next prime is 1128748907521. The reversal of 1128748907520 is 257098478211.

1128748907520 is a `hidden beast` number, since 1 + 1 + 28 + 7 + 4 + 8 + 90 + 7 + 520 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128748907521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2759777076 + ... + 2759777484.

Almost surely, 2^{1128748907520} is an apocalyptic number.

1128748907520 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 1128748907520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243549992320).

1128748907520 is an abundant number, since it is smaller than the sum of its proper divisors (3358351077120).

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

1128748907520 is a wasteful number, since it uses less digits than its factorization.

1128748907520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 1128748907520 in words is "one trillion, one hundred twenty-eight billion, seven hundred forty-eight million, nine hundred seven thousand, five hundred twenty".