1128309643804 has 48 divisors (see below), whose sum is σ = 2362222227456. Its totient is φ = 461371478400.

The previous prime is 1128309643771. The next prime is 1128309643829. The reversal of 1128309643804 is 4083469038211.

It is a happy number.

It is a super-2 number, since 2×1128309643804² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9092569 + ... + 9215824.

It is an arithmetic number, because the mean of its divisors is an integer number (49212963072).

Almost surely, 2^{1128309643804} is an apocalyptic number.

1128309643804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1128309643804 is an abundant number, since it is smaller than the sum of its proper divisors (1233912583652).

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

1128309643804 is a wasteful number, since it uses less digits than its factorization.

1128309643804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18308506 (or 18308504 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 1128309643804 in words is "one trillion, one hundred twenty-eight billion, three hundred nine million, six hundred forty-three thousand, eight hundred four".