1129734781178 has 32 divisors (see below), whose sum is σ = 1747886551488. Its totient is φ = 547308662400.

The previous prime is 1129734781129. The next prime is 1129734781211. The reversal of 1129734781178 is 8711874379211.

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 15 ways as a sum of consecutive naturals, for example, 6892193 + ... + 7054203.

It is an arithmetic number, because the mean of its divisors is an integer number (54621454734).

Almost surely, 2^{1129734781178} is an apocalyptic number.

1129734781178 is a deficient number, since it is larger than the sum of its proper divisors (618151770310).

1129734781178 is a wasteful number, since it uses less digits than its factorization.

1129734781178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162638.

The product of its digits is 4741632, while the sum is 59.

The spelling of 1129734781178 in words is "one trillion, one hundred twenty-nine billion, seven hundred thirty-four million, seven hundred eighty-one thousand, one hundred seventy-eight".