1128789315306 has 16 divisors (see below), whose sum is σ = 2508420700800. Its totient is φ = 376263105084.

The previous prime is 1128789315301. The next prime is 1128789315371. The reversal of 1128789315306 is 6035139878211.

1128789315306 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 78 + 9 + 31 + 530 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 20903505839 = 1128789315306 / (1 + 1 + 2 + 8 + 7 + 8 + 9 + 3 + 1 + 5 + 3 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (1128789315301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10451752866 + ... + 10451752973.

It is an arithmetic number, because the mean of its divisors is an integer number (156776293800).

Almost surely, 2^{1128789315306} is an apocalyptic number.

1128789315306 is an abundant number, since it is smaller than the sum of its proper divisors (1379631385494).

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

1128789315306 is a wasteful number, since it uses less digits than its factorization.

1128789315306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20903505850 (or 20903505844 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1128789315306 in words is "one trillion, one hundred twenty-eight billion, seven hundred eighty-nine million, three hundred fifteen thousand, three hundred six".