8381005459 has 4 divisors (see below), whose sum is σ = 8386417600. Its totient is φ = 8375593320.

The previous prime is 8381005379. The next prime is 8381005499. The reversal of 8381005459 is 9545001838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8381005459 - 2⁷ = 8381005331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8381005499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2703747 + ... + 2706844.

It is an arithmetic number, because the mean of its divisors is an integer number (2096604400).

Almost surely, 2^8381005459 is an apocalyptic number.

8381005459 is a deficient number, since it is larger than the sum of its proper divisors (5412141).

8381005459 is a wasteful number, since it uses less digits than its factorization.

8381005459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412140.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 8381005459 is about 91547.8315363067. The cubic root of 8381005459 is about 2031.2593364475.

The spelling of 8381005459 in words is "eight billion, three hundred eighty-one million, five thousand, four hundred fifty-nine".