20200763749973 has 2 divisors, whose sum is σ = 20200763749974. Its totient is φ = 20200763749972.

The previous prime is 20200763749921. The next prime is 20200763750003. The reversal of 20200763749973 is 37994736700202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18315036074449 + 1885727675524 = 4279607^2 + 1373218^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200763749973 - 2³⁰ = 20199690008149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200763746973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100381874986 + 10100381874987.

It is an arithmetic number, because the mean of its divisors is an integer number (10100381874987).

Almost surely, 2^{20200763749973} is an apocalyptic number.

It is an amenable number.

20200763749973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200763749973 is an equidigital number, since it uses as much as digits as its factorization.

20200763749973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 59.

The spelling of 20200763749973 in words is "twenty trillion, two hundred billion, seven hundred sixty-three million, seven hundred forty-nine thousand, nine hundred seventy-three".