634476485784 has 16 divisors (see below), whose sum is σ = 1586191214520. Its totient is φ = 211492161920.

The previous prime is 634476485777. The next prime is 634476485833. The reversal of 634476485784 is 487584674436.

It is a super-2 number, since 2×634476485784² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13218260097 + ... + 13218260144.

Almost surely, 2^634476485784 is an apocalyptic number.

It is an amenable number.

634476485784 is an abundant number, since it is smaller than the sum of its proper divisors (951714728736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634476485784 is a wasteful number, since it uses less digits than its factorization.

634476485784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26436520250 (or 26436520246 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 66.

The spelling of 634476485784 in words is "six hundred thirty-four billion, four hundred seventy-six million, four hundred eighty-five thousand, seven hundred eighty-four".