1084427107809 has 4 divisors (see below), whose sum is σ = 1445902810416. Its totient is φ = 722951405204.

The previous prime is 1084427107793. The next prime is 1084427107823. The reversal of 1084427107809 is 9087017244801.

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 1084427107809 - 2⁴ = 1084427107793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1084427107889) 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, 180737851299 + ... + 180737851304.

It is an arithmetic number, because the mean of its divisors is an integer number (361475702604).

Almost surely, 2^{1084427107809} is an apocalyptic number.

It is an amenable number.

1084427107809 is a deficient number, since it is larger than the sum of its proper divisors (361475702607).

1084427107809 is an equidigital number, since it uses as much as digits as its factorization.

1084427107809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361475702606.

The product of its (nonzero) digits is 903168, while the sum is 51.

The spelling of 1084427107809 in words is "one trillion, eighty-four billion, four hundred twenty-seven million, one hundred seven thousand, eight hundred nine".