20364241777073 has 2 divisors, whose sum is σ = 20364241777074. Its totient is φ = 20364241777072.

The previous prime is 20364241777007. The next prime is 20364241777111. The reversal of 20364241777073 is 37077714246302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18953772009649 + 1410469767424 = 4353593^2 + 1187632^2 .

It is a cyclic number.

It is not a de Polignac number, because 20364241777073 - 2⁸ = 20364241776817 is a prime.

It is not a weakly prime, because it can be changed into another prime (20364241777273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10182120888536 + 10182120888537.

It is an arithmetic number, because the mean of its divisors is an integer number (10182120888537).

Almost surely, 2^{20364241777073} is an apocalyptic number.

It is an amenable number.

20364241777073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20364241777073 is an equidigital number, since it uses as much as digits as its factorization.

20364241777073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8297856, while the sum is 53.

The spelling of 20364241777073 in words is "twenty trillion, three hundred sixty-four billion, two hundred forty-one million, seven hundred seventy-seven thousand, seventy-three".