635680451595053 has 2 divisors, whose sum is σ = 635680451595054. Its totient is φ = 635680451595052.

The previous prime is 635680451595031. The next prime is 635680451595067. The reversal of 635680451595053 is 350595154086536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514008565467049 + 121671886128004 = 22671757^2 + 11030498^2 .

It is a cyclic number.

It is not a de Polignac number, because 635680451595053 - 2⁴⁶ = 565311707417389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635680451595083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317840225797526 + 317840225797527.

It is an arithmetic number, because the mean of its divisors is an integer number (317840225797527).

Almost surely, 2^{635680451595053} is an apocalyptic number.

It is an amenable number.

635680451595053 is a deficient number, since it is larger than the sum of its proper divisors (1).

635680451595053 is an equidigital number, since it uses as much as digits as its factorization.

635680451595053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600000, while the sum is 65.

The spelling of 635680451595053 in words is "six hundred thirty-five trillion, six hundred eighty billion, four hundred fifty-one million, five hundred ninety-five thousand, fifty-three".