1128964798080 has 640 divisors, whose sum is σ = 4664713694400. Its totient is φ = 258039613440.

The previous prime is 1128964798061. The next prime is 1128964798109. The reversal of 1128964798080 is 808974698211.

1128964798080 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 9 + 6 + 479 + 80 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1128964797999 and 1128964798017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41475675 + ... + 41502885.

Almost surely, 2^{1128964798080} is an apocalyptic number.

1128964798080 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 1128964798080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2332356847200).

1128964798080 is an abundant number, since it is smaller than the sum of its proper divisors (3535748896320).

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

1128964798080 is an frugal number, since it uses more digits than its factorization.

1128964798080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27267 (or 27228 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 1128964798080 in words is "one trillion, one hundred twenty-eight billion, nine hundred sixty-four million, seven hundred ninety-eight thousand, eighty".