1128723040536 has 128 divisors (see below), whose sum is σ = 3475023552000. Its totient is φ = 297511234560.

The previous prime is 1128723040513. The next prime is 1128723040573. The reversal of 1128723040536 is 6350403278211.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3608515 + ... + 3908813.

It is an arithmetic number, because the mean of its divisors is an integer number (27148621500).

Almost surely, 2^{1128723040536} 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 1128723040536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737511776000).

1128723040536 is an abundant number, since it is smaller than the sum of its proper divisors (2346300511464).

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

1128723040536 is a wasteful number, since it uses less digits than its factorization.

1128723040536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302049 (or 302045 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 1128723040536 in words is "one trillion, one hundred twenty-eight billion, seven hundred twenty-three million, forty thousand, five hundred thirty-six".