16969429709 has 2 divisors, whose sum is σ = 16969429710. Its totient is φ = 16969429708.

The previous prime is 16969429651. The next prime is 16969429781. The reversal of 16969429709 is 90792496961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9370820809 + 7598608900 = 96803^2 + 87170^2 .

It is a cyclic number.

It is not a de Polignac number, because 16969429709 - 2²⁸ = 16700994253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16969429909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8484714854 + 8484714855.

It is an arithmetic number, because the mean of its divisors is an integer number (8484714855).

Almost surely, 2^16969429709 is an apocalyptic number.

It is an amenable number.

16969429709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16969429709 is an equidigital number, since it uses as much as digits as its factorization.

16969429709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13226976, while the sum is 62.

The spelling of 16969429709 in words is "sixteen billion, nine hundred sixty-nine million, four hundred twenty-nine thousand, seven hundred nine".