635774628063 has 4 divisors (see below), whose sum is σ = 847699504088. Its totient is φ = 423849752040.

The previous prime is 635774628037. The next prime is 635774628079. The reversal of 635774628063 is 360826477536.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-635774628063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 635774627994 and 635774628012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635774828063) 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, 105962438008 + ... + 105962438013.

It is an arithmetic number, because the mean of its divisors is an integer number (211924876022).

Almost surely, 2^635774628063 is an apocalyptic number.

635774628063 is a deficient number, since it is larger than the sum of its proper divisors (211924876025).

635774628063 is a wasteful number, since it uses less digits than its factorization.

635774628063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211924876024.

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 635774628063 in words is "six hundred thirty-five billion, seven hundred seventy-four million, six hundred twenty-eight thousand, sixty-three".