438558944668 has 48 divisors (see below), whose sum is σ = 840673008000. Its totient is φ = 198945759168.

The previous prime is 438558944617. The next prime is 438558944671. The reversal of 438558944668 is 866449855834.

It is a super-3 number, since 3×438558944668³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438558944597 and 438558944606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25821003 + ... + 25837981.

It is an arithmetic number, because the mean of its divisors is an integer number (17514021000).

Almost surely, 2^438558944668 is an apocalyptic number.

It is an amenable number.

438558944668 is a deficient number, since it is larger than the sum of its proper divisors (402114063332).

438558944668 is a wasteful number, since it uses less digits than its factorization.

438558944668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25474 (or 25472 counting only the distinct ones).

The product of its digits is 796262400, while the sum is 70.

The spelling of 438558944668 in words is "four hundred thirty-eight billion, five hundred fifty-eight million, nine hundred forty-four thousand, six hundred sixty-eight".