438473128753648 has 10 divisors (see below), whose sum is σ = 849541686960224. Its totient is φ = 219236564376816.

The previous prime is 438473128753631. The next prime is 438473128753679. The reversal of 438473128753648 is 846357821374834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13702285273536 + ... + 13702285273567.

Almost surely, 2^{438473128753648} is an apocalyptic number.

It is an amenable number.

438473128753648 is a deficient number, since it is larger than the sum of its proper divisors (411068558206576).

438473128753648 is a wasteful number, since it uses less digits than its factorization.

438473128753648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27404570547111 (or 27404570547105 counting only the distinct ones).

The product of its digits is 2601123840, while the sum is 73.

The spelling of 438473128753648 in words is "four hundred thirty-eight trillion, four hundred seventy-three billion, one hundred twenty-eight million, seven hundred fifty-three thousand, six hundred forty-eight".