381583478287 has 8 divisors (see below), whose sum is σ = 418385948112. Its totient is φ = 345133185600.

The previous prime is 381583478261. The next prime is 381583478321. The reversal of 381583478287 is 782874385183.

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 381583478287 - 2¹⁵ = 381583445519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381583478687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88042014 + ... + 88046347.

It is an arithmetic number, because the mean of its divisors is an integer number (52298243514).

Almost surely, 2^381583478287 is an apocalyptic number.

381583478287 is a deficient number, since it is larger than the sum of its proper divisors (36802469825).

381583478287 is a wasteful number, since it uses less digits than its factorization.

381583478287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176088569.

The product of its digits is 72253440, while the sum is 64.

The spelling of 381583478287 in words is "three hundred eighty-one billion, five hundred eighty-three million, four hundred seventy-eight thousand, two hundred eighty-seven".