381856496693728 has 48 divisors (see below), whose sum is σ = 888803914733280. Its totient is φ = 158009584836096.

The previous prime is 381856496693687. The next prime is 381856496693741. The reversal of 381856496693728 is 827396694658183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29391657351 + ... + 29391670342.

It is an arithmetic number, because the mean of its divisors is an integer number (18516748223610).

Almost surely, 2^{381856496693728} is an apocalyptic number.

It is an amenable number.

381856496693728 is an abundant number, since it is smaller than the sum of its proper divisors (506947418039552).

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

381856496693728 is a wasteful number, since it uses less digits than its factorization.

381856496693728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58783327739 (or 58783327731 counting only the distinct ones).

The product of its digits is 22574039040, while the sum is 85.

The spelling of 381856496693728 in words is "three hundred eighty-one trillion, eight hundred fifty-six billion, four hundred ninety-six million, six hundred ninety-three thousand, seven hundred twenty-eight".