381887447041 has 8 divisors (see below), whose sum is σ = 404357474304. Its totient is φ = 359418093120.

The previous prime is 381887447021. The next prime is 381887447047. The reversal of 381887447041 is 140744788183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381887447041 - 2¹⁷ = 381887315969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381887447047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436616 + ... + 1681558.

It is an arithmetic number, because the mean of its divisors is an integer number (50544684288).

Almost surely, 2^381887447041 is an apocalyptic number.

It is an amenable number.

381887447041 is a deficient number, since it is larger than the sum of its proper divisors (22470027263).

381887447041 is a wasteful number, since it uses less digits than its factorization.

381887447041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336671.

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 381887447041 in words is "three hundred eighty-one billion, eight hundred eighty-seven million, four hundred forty-seven thousand, forty-one".