1005910485889 has 4 divisors (see below), whose sum is σ = 1013831041024. Its totient is φ = 997989930756.

The previous prime is 1005910485857. The next prime is 1005910485917. The reversal of 1005910485889 is 9885840195001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1005910485889 - 2⁵ = 1005910485857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005940485889) 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 3 ways as a sum of consecutive naturals, for example, 3960277377 + ... + 3960277630.

It is an arithmetic number, because the mean of its divisors is an integer number (253457760256).

Almost surely, 2^{1005910485889} is an apocalyptic number.

It is an amenable number.

1005910485889 is a deficient number, since it is larger than the sum of its proper divisors (7920555135).

1005910485889 is an equidigital number, since it uses as much as digits as its factorization.

1005910485889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920555134.

The product of its (nonzero) digits is 4147200, while the sum is 58.

The spelling of 1005910485889 in words is "one trillion, five billion, nine hundred ten million, four hundred eighty-five thousand, eight hundred eighty-nine".