20043797620793 has 2 divisors, whose sum is σ = 20043797620794. Its totient is φ = 20043797620792.

The previous prime is 20043797620789. The next prime is 20043797620927. The reversal of 20043797620793 is 39702679734002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17793101566969 + 2250696053824 = 4218187^2 + 1500232^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043797620793 - 2² = 20043797620789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20043797620393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021898810396 + 10021898810397.

It is an arithmetic number, because the mean of its divisors is an integer number (10021898810397).

Almost surely, 2^{20043797620793} is an apocalyptic number.

It is an amenable number.

20043797620793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043797620793 is an equidigital number, since it uses as much as digits as its factorization.

20043797620793 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 20043797620793 in words is "twenty trillion, forty-three billion, seven hundred ninety-seven million, six hundred twenty thousand, seven hundred ninety-three".