381800465488 has 120 divisors (see below), whose sum is σ = 828072833280. Its totient is φ = 170280714240.

The previous prime is 381800465471. The next prime is 381800465507. The reversal of 381800465488 is 884564008183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64457695 + ... + 64463617.

It is an arithmetic number, because the mean of its divisors is an integer number (6900606944).

Almost surely, 2^381800465488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381800465488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414036416640).

381800465488 is an abundant number, since it is smaller than the sum of its proper divisors (446272367792).

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

381800465488 is a wasteful number, since it uses less digits than its factorization.

381800465488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6757 (or 6738 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 55.

The spelling of 381800465488 in words is "three hundred eighty-one billion, eight hundred million, four hundred sixty-five thousand, four hundred eighty-eight".