381840456547 has 8 divisors (see below), whose sum is σ = 426713060592. Its totient is φ = 338661158400.

The previous prime is 381840456521. The next prime is 381840456553. The reversal of 381840456547 is 745654048183.

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 381840456547 - 2¹⁵ = 381840423779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381841456547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423325998 + ... + 423326899.

It is an arithmetic number, because the mean of its divisors is an integer number (53339132574).

Almost surely, 2^381840456547 is an apocalyptic number.

381840456547 is a deficient number, since it is larger than the sum of its proper divisors (44872604045).

381840456547 is a wasteful number, since it uses less digits than its factorization.

381840456547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846652949.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 381840456547 in words is "three hundred eighty-one billion, eight hundred forty million, four hundred fifty-six thousand, five hundred forty-seven".