635755506149 has 2 divisors, whose sum is σ = 635755506150. Its totient is φ = 635755506148.

The previous prime is 635755506107. The next prime is 635755506157. The reversal of 635755506149 is 941605557536.

635755506149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336417400225 + 299338105924 = 580015^2 + 547118^2 .

It is a cyclic number.

It is not a de Polignac number, because 635755506149 - 2⁸ = 635755505893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635755506094 and 635755506103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635755506649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317877753074 + 317877753075.

It is an arithmetic number, because the mean of its divisors is an integer number (317877753075).

Almost surely, 2^635755506149 is an apocalyptic number.

It is an amenable number.

635755506149 is a deficient number, since it is larger than the sum of its proper divisors (1).

635755506149 is an equidigital number, since it uses as much as digits as its factorization.

635755506149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010000, while the sum is 56.

The spelling of 635755506149 in words is "six hundred thirty-five billion, seven hundred fifty-five million, five hundred six thousand, one hundred forty-nine".