635774628065 has 8 divisors (see below), whose sum is σ = 762953229888. Its totient is φ = 508603918320.

The previous prime is 635774628037. The next prime is 635774628079. The reversal of 635774628065 is 560826477536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 635774628065 - 2²⁸ = 635506192609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 635774627995 and 635774628013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794317 + ... + 2119226.

It is an arithmetic number, because the mean of its divisors is an integer number (95369153736).

Almost surely, 2^635774628065 is an apocalyptic number.

It is an amenable number.

635774628065 is a deficient number, since it is larger than the sum of its proper divisors (127178601823).

635774628065 is a wasteful number, since it uses less digits than its factorization.

635774628065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946039.

The product of its (nonzero) digits is 50803200, while the sum is 59.

The spelling of 635774628065 in words is "six hundred thirty-five billion, seven hundred seventy-four million, six hundred twenty-eight thousand, sixty-five".