634094884872 has 40 divisors (see below), whose sum is σ = 1776052804350. Its totient is φ = 211364961408.

The previous prime is 634094884849. The next prime is 634094884903. The reversal of 634094884872 is 278488490436.

634094884872 is a `hidden beast` number, since 6 + 3 + 40 + 9 + 488 + 48 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 589004061156 + 45090823716 = 767466^2 + 212346^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 489270097 + ... + 489271392.

Almost surely, 2^634094884872 is an apocalyptic number.

It is an amenable number.

634094884872 is an abundant number, since it is smaller than the sum of its proper divisors (1141957919478).

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

634094884872 is a wasteful number, since it uses less digits than its factorization.

634094884872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978541507 (or 978541494 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 63.

The spelling of 634094884872 in words is "six hundred thirty-four billion, ninety-four million, eight hundred eighty-four thousand, eight hundred seventy-two".