1005805871834 has 16 divisors (see below), whose sum is σ = 1551005431200. Its totient is φ = 488830740624.

The previous prime is 1005805871783. The next prime is 1005805871953. The reversal of 1005805871834 is 4381785085001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6593864 + ... + 6744675.

It is an arithmetic number, because the mean of its divisors is an integer number (96937839450).

Almost surely, 2^{1005805871834} is an apocalyptic number.

1005805871834 is a deficient number, since it is larger than the sum of its proper divisors (545199559366).

1005805871834 is a wasteful number, since it uses less digits than its factorization.

1005805871834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339597.

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 1005805871834 in words is "one trillion, five billion, eight hundred five million, eight hundred seventy-one thousand, eight hundred thirty-four".