12009529739 has 2 divisors, whose sum is σ = 12009529740. Its totient is φ = 12009529738.

The previous prime is 12009529717. The next prime is 12009529751. The reversal of 12009529739 is 93792590021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12009529739 - 2²⁴ = 11992752523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12009529693 and 12009529702.

It is not a weakly prime, because it can be changed into another prime (12009529769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004764869 + 6004764870.

It is an arithmetic number, because the mean of its divisors is an integer number (6004764870).

Almost surely, 2^12009529739 is an apocalyptic number.

12009529739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009529739 is an equidigital number, since it uses as much as digits as its factorization.

12009529739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 47.

The spelling of 12009529739 in words is "twelve billion, nine million, five hundred twenty-nine thousand, seven hundred thirty-nine".