1128842643600 has 480 divisors, whose sum is σ = 4750169184000. Its totient is φ = 249123409920.

The previous prime is 1128842643583. The next prime is 1128842643613. The reversal of 1128842643600 is 63462488211.

1128842643600 is a `hidden beast` number, since 1 + 1 + 28 + 8 + 4 + 264 + 360 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1934956 + ... + 2449844.

It is an arithmetic number, because the mean of its divisors is an integer number (9896185800).

Almost surely, 2^{1128842643600} is an apocalyptic number.

1128842643600 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 1128842643600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375084592000).

1128842643600 is an abundant number, since it is smaller than the sum of its proper divisors (3621326540400).

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

1128842643600 is a wasteful number, since it uses less digits than its factorization.

1128842643600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514952 (or 514935 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 1128842643600 in words is "one trillion, one hundred twenty-eight billion, eight hundred forty-two million, six hundred forty-three thousand, six hundred".