1128008390730 has 128 divisors (see below), whose sum is σ = 3069777070080. Its totient is φ = 262975714560.

The previous prime is 1128008390713. The next prime is 1128008390741. The reversal of 1128008390730 is 370938008211.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28961049 + ... + 28999971.

It is an arithmetic number, because the mean of its divisors is an integer number (23982633360).

Almost surely, 2^{1128008390730} is an apocalyptic number.

1128008390730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128008390730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534888535040).

1128008390730 is an abundant number, since it is smaller than the sum of its proper divisors (1941768679350).

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

1128008390730 is a wasteful number, since it uses less digits than its factorization.

1128008390730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42876.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 1128008390730 in words is "one trillion, one hundred twenty-eight billion, eight million, three hundred ninety thousand, seven hundred thirty".