20029479366973 has 2 divisors, whose sum is σ = 20029479366974. Its totient is φ = 20029479366972.

The previous prime is 20029479366893. The next prime is 20029479366979. The reversal of 20029479366973 is 37966397492002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18342735596964 + 1686743770009 = 4282842^2 + 1298747^2 .

It is a cyclic number.

It is not a de Polignac number, because 20029479366973 - 2³³ = 20020889432381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20029479366899 and 20029479366908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20029479366979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10014739683486 + 10014739683487.

It is an arithmetic number, because the mean of its divisors is an integer number (10014739683487).

Almost surely, 2^{20029479366973} is an apocalyptic number.

It is an amenable number.

20029479366973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20029479366973 is an equidigital number, since it uses as much as digits as its factorization.

20029479366973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185177664, while the sum is 67.

The spelling of 20029479366973 in words is "twenty trillion, twenty-nine billion, four hundred seventy-nine million, three hundred sixty-six thousand, nine hundred seventy-three".