636785000053 has 2 divisors, whose sum is σ = 636785000054. Its totient is φ = 636785000052.

The previous prime is 636785000011. The next prime is 636785000083. The reversal of 636785000053 is 350000587636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540869051844 + 95915948209 = 735438^2 + 309703^2 .

It is a cyclic number.

It is not a de Polignac number, because 636785000053 - 2²¹ = 636782902901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636784999973 and 636785000009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636785000083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318392500026 + 318392500027.

It is an arithmetic number, because the mean of its divisors is an integer number (318392500027).

Almost surely, 2^636785000053 is an apocalyptic number.

It is an amenable number.

636785000053 is a deficient number, since it is larger than the sum of its proper divisors (1).

636785000053 is an equidigital number, since it uses as much as digits as its factorization.

636785000053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 43.

Adding to 636785000053 its reverse (350000587636), we get a palindrome (986785587689).

The spelling of 636785000053 in words is "six hundred thirty-six billion, seven hundred eighty-five million, fifty-three", and thus it is an aban number.