438684763204848 has 160 divisors (see below), whose sum is σ = 1151312090452992. Its totient is φ = 143907695769600.

The previous prime is 438684763204847. The next prime is 438684763204903. The reversal of 438684763204848 is 848402367486834.

It is a self number, because there is not a number n which added to its sum of digits gives 438684763204848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438684763204847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8561180508 + ... + 8561231748.

Almost surely, 2^{438684763204848} is an apocalyptic number.

438684763204848 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438684763204848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575656045226496).

438684763204848 is an abundant number, since it is smaller than the sum of its proper divisors (712627327248144).

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

438684763204848 is a wasteful number, since it uses less digits than its factorization.

438684763204848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55823 (or 55817 counting only the distinct ones).

The product of its (nonzero) digits is 4756340736, while the sum is 75.

The spelling of 438684763204848 in words is "four hundred thirty-eight trillion, six hundred eighty-four billion, seven hundred sixty-three million, two hundred four thousand, eight hundred forty-eight".