381330722784 has 96 divisors (see below), whose sum is σ = 1092558136320. Its totient is φ = 115494912000.

The previous prime is 381330722777. The next prime is 381330722791. The reversal of 381330722784 is 487227033183.

It is an interprime number because it is at equal distance from previous prime (381330722777) and next prime (381330722791).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1967712 + ... + 2152800.

It is an arithmetic number, because the mean of its divisors is an integer number (11380813920).

Almost surely, 2^381330722784 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 381330722784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546279068160).

381330722784 is an abundant number, since it is smaller than the sum of its proper divisors (711227413536).

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

381330722784 is a wasteful number, since it uses less digits than its factorization.

381330722784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187064 (or 187056 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 381330722784 in words is "three hundred eighty-one billion, three hundred thirty million, seven hundred twenty-two thousand, seven hundred eighty-four".