1029396729912 has 16 divisors (see below), whose sum is σ = 2573491824840. Its totient is φ = 343132243296.

The previous prime is 1029396729863. The next prime is 1029396729913. The reversal of 1029396729912 is 2199276939201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029396729913) 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, 21445765183 + ... + 21445765230.

Almost surely, 2^{1029396729912} is an apocalyptic number.

1029396729912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1029396729912 is an abundant number, since it is smaller than the sum of its proper divisors (1544095094928).

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

1029396729912 is a wasteful number, since it uses less digits than its factorization.

1029396729912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42891530422 (or 42891530418 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 60.

The spelling of 1029396729912 in words is "one trillion, twenty-nine billion, three hundred ninety-six million, seven hundred twenty-nine thousand, nine hundred twelve".