1128730832768 has 64 divisors (see below), whose sum is σ = 2803503553920. Its totient is φ = 439765255680.

The previous prime is 1128730832753. The next prime is 1128730832771. The reversal of 1128730832768 is 8672380378211.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1128730832768² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 57251246 + ... + 57270957.

It is an arithmetic number, because the mean of its divisors is an integer number (43804743030).

Almost surely, 2^{1128730832768} is an apocalyptic number.

It is an amenable number.

1128730832768 is an abundant number, since it is smaller than the sum of its proper divisors (1674772721152).

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

1128730832768 is a wasteful number, since it uses less digits than its factorization.

1128730832768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114522235 (or 114522223 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 1128730832768 in words is "one trillion, one hundred twenty-eight billion, seven hundred thirty million, eight hundred thirty-two thousand, seven hundred sixty-eight".