13936784929 has 2 divisors, whose sum is σ = 13936784930. Its totient is φ = 13936784928.

The previous prime is 13936784891. The next prime is 13936784963. The reversal of 13936784929 is 92948763931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9985405329 + 3951379600 = 99927^2 + 62860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13936784929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13936784969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968392464 + 6968392465.

It is an arithmetic number, because the mean of its divisors is an integer number (6968392465).

Almost surely, 2^13936784929 is an apocalyptic number.

It is an amenable number.

13936784929 is a deficient number, since it is larger than the sum of its proper divisors (1).

13936784929 is an equidigital number, since it uses as much as digits as its factorization.

13936784929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 61.

The spelling of 13936784929 in words is "thirteen billion, nine hundred thirty-six million, seven hundred eighty-four thousand, nine hundred twenty-nine".