1005871491057 has 8 divisors (see below), whose sum is σ = 1341805857184. Its totient is φ = 670259059488.

The previous prime is 1005871491017. The next prime is 1005871491059. The reversal of 1005871491057 is 7501941785001.

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

It is not a de Polignac number, because 1005871491057 - 2²⁰ = 1005870442481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005871490997 and 1005871491015.

It is not an unprimeable number, because it can be changed into a prime (1005871491059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80476348 + ... + 80488845.

It is an arithmetic number, because the mean of its divisors is an integer number (167725732148).

Almost surely, 2^{1005871491057} is an apocalyptic number.

It is an amenable number.

1005871491057 is a deficient number, since it is larger than the sum of its proper divisors (335934366127).

1005871491057 is a wasteful number, since it uses less digits than its factorization.

1005871491057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160967279.

The product of its (nonzero) digits is 352800, while the sum is 48.

The spelling of 1005871491057 in words is "one trillion, five billion, eight hundred seventy-one million, four hundred ninety-one thousand, fifty-seven".