635248617361 has 4 divisors (see below), whose sum is σ = 635370061824. Its totient is φ = 635127172900.

The previous prime is 635248617347. The next prime is 635248617407. The reversal of 635248617361 is 163716842536.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 635248617361 - 2⁵ = 635248617329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 635248617299 and 635248617308.

It is not an unprimeable number, because it can be changed into a prime (635248617301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60714385 + ... + 60724846.

It is an arithmetic number, because the mean of its divisors is an integer number (158842515456).

Almost surely, 2^635248617361 is an apocalyptic number.

It is an amenable number.

635248617361 is a deficient number, since it is larger than the sum of its proper divisors (121444463).

635248617361 is a wasteful number, since it uses less digits than its factorization.

635248617361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121444462.

The product of its digits is 4354560, while the sum is 52.

The spelling of 635248617361 in words is "six hundred thirty-five billion, two hundred forty-eight million, six hundred seventeen thousand, three hundred sixty-one".