1309084729912 has 16 divisors (see below), whose sum is σ = 2520872622360. Its totient is φ = 636852030624.

The previous prime is 1309084729907. The next prime is 1309084729913. The reversal of 1309084729912 is 2199274809031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309084729913) 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, 2211291478 + ... + 2211292069.

Almost surely, 2^{1309084729912} is an apocalyptic number.

It is an amenable number.

1309084729912 is a deficient number, since it is larger than the sum of its proper divisors (1211787892448).

1309084729912 is a wasteful number, since it uses less digits than its factorization.

1309084729912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422583590 (or 4422583586 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 1309084729912 in words is "one trillion, three hundred nine billion, eighty-four million, seven hundred twenty-nine thousand, nine hundred twelve".