1129942568428 has 12 divisors (see below), whose sum is σ = 1994898606120. Its totient is φ = 559971538112.

The previous prime is 1129942568423. The next prime is 1129942568431. The reversal of 1129942568428 is 8248652499211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1129942568423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249936018 + ... + 1249936921.

It is an arithmetic number, because the mean of its divisors is an integer number (166241550510).

Almost surely, 2^{1129942568428} is an apocalyptic number.

It is an amenable number.

1129942568428 is a deficient number, since it is larger than the sum of its proper divisors (864956037692).

1129942568428 is a wasteful number, since it uses less digits than its factorization.

1129942568428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499873056 (or 2499873054 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 61.

The spelling of 1129942568428 in words is "one trillion, one hundred twenty-nine billion, nine hundred forty-two million, five hundred sixty-eight thousand, four hundred twenty-eight".