638848333062 has 24 divisors (see below), whose sum is σ = 1399723879320. Its totient is φ = 210556753440.

The previous prime is 638848333061. The next prime is 638848333111. The reversal of 638848333062 is 260333848836.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638848333061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199389264 + ... + 199392467.

It is an arithmetic number, because the mean of its divisors is an integer number (58321828305).

Almost surely, 2^638848333062 is an apocalyptic number.

638848333062 is an abundant number, since it is smaller than the sum of its proper divisors (760875546258).

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

638848333062 is a wasteful number, since it uses less digits than its factorization.

638848333062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398781828 (or 398781825 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 638848333062 in words is "six hundred thirty-eight billion, eight hundred forty-eight million, three hundred thirty-three thousand, sixty-two".