635768377673 has 48 divisors (see below), whose sum is σ = 775780104960. Its totient is φ = 517274165760.

The previous prime is 635768377667. The next prime is 635768377691. The reversal of 635768377673 is 376773867536.

It is not a de Polignac number, because 635768377673 - 2⁸ = 635768377417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (635768370673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7870433 + ... + 7950801.

It is an arithmetic number, because the mean of its divisors is an integer number (16162085520).

Almost surely, 2^635768377673 is an apocalyptic number.

It is an amenable number.

635768377673 is a deficient number, since it is larger than the sum of its proper divisors (140011727287).

635768377673 is a wasteful number, since it uses less digits than its factorization.

635768377673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80558 (or 80547 counting only the distinct ones).

The product of its digits is 560105280, while the sum is 68.

The spelling of 635768377673 in words is "six hundred thirty-five billion, seven hundred sixty-eight million, three hundred seventy-seven thousand, six hundred seventy-three".