12434632729 has 2 divisors, whose sum is σ = 12434632730. Its totient is φ = 12434632728.

The previous prime is 12434632687. The next prime is 12434632781. The reversal of 12434632729 is 92723643421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9245207104 + 3189425625 = 96152^2 + 56475^2 .

It is a cyclic number.

It is not a de Polignac number, because 12434632729 - 2⁷ = 12434632601 is a prime.

It is a super-2 number, since 2×12434632729² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12434632129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6217316364 + 6217316365.

It is an arithmetic number, because the mean of its divisors is an integer number (6217316365).

Almost surely, 2^12434632729 is an apocalyptic number.

It is an amenable number.

12434632729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12434632729 is an equidigital number, since it uses as much as digits as its factorization.

12434632729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 43.

The spelling of 12434632729 in words is "twelve billion, four hundred thirty-four million, six hundred thirty-two thousand, seven hundred twenty-nine".