634204267623 has 8 divisors (see below), whose sum is σ = 939561878000. Its totient is φ = 422802845064.

The previous prime is 634204267607. The next prime is 634204267679. The reversal of 634204267623 is 326762402436.

It is a happy number.

634204267623 is a `hidden beast` number, since 634 + 2 + 0 + 4 + 2 + 6 + 7 + 6 + 2 + 3 = 666.

It is not a de Polignac number, because 634204267623 - 2⁴ = 634204267607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634204267603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11744523448 + ... + 11744523501.

It is an arithmetic number, because the mean of its divisors is an integer number (117445234750).

Almost surely, 2^634204267623 is an apocalyptic number.

634204267623 is a deficient number, since it is larger than the sum of its proper divisors (305357610377).

634204267623 is a wasteful number, since it uses less digits than its factorization.

634204267623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23489046958 (or 23489046952 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 45.

The spelling of 634204267623 in words is "six hundred thirty-four billion, two hundred four million, two hundred sixty-seven thousand, six hundred twenty-three".