634281046040 has 64 divisors (see below), whose sum is σ = 1429473346560. Its totient is φ = 253296616320.

The previous prime is 634281046037. The next prime is 634281046099. The reversal of 634281046040 is 40640182436.

It is a junction number, because it is equal to n+sod(n) for n = 634281045985 and 634281046003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70385135 + ... + 70394145.

It is an arithmetic number, because the mean of its divisors is an integer number (22335521040).

Almost surely, 2^634281046040 is an apocalyptic number.

It is an amenable number.

634281046040 is an abundant number, since it is smaller than the sum of its proper divisors (795192300520).

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

634281046040 is a wasteful number, since it uses less digits than its factorization.

634281046040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11712 (or 11708 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 634281046040 in words is "six hundred thirty-four billion, two hundred eighty-one million, forty-six thousand, forty".