20614907129 has 2 divisors, whose sum is σ = 20614907130. Its totient is φ = 20614907128.

The previous prime is 20614907113. The next prime is 20614907177. The reversal of 20614907129 is 92170941602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20235631504 + 379275625 = 142252^2 + 19475^2 .

It is a cyclic number.

It is not a de Polignac number, because 20614907129 - 2⁴ = 20614907113 is a prime.

It is not a weakly prime, because it can be changed into another prime (20614907329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10307453564 + 10307453565.

It is an arithmetic number, because the mean of its divisors is an integer number (10307453565).

Almost surely, 2^20614907129 is an apocalyptic number.

It is an amenable number.

20614907129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20614907129 is an equidigital number, since it uses as much as digits as its factorization.

20614907129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 20614907129 in words is "twenty billion, six hundred fourteen million, nine hundred seven thousand, one hundred twenty-nine".