1170428689589 has 4 divisors (see below), whose sum is σ = 1170636181260. Its totient is φ = 1170221197920.

The previous prime is 1170428689571. The next prime is 1170428689603. The reversal of 1170428689589 is 9859868240711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 651841472689 + 518587216900 = 807367^2 + 720130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170428689589 - 2¹² = 1170428685493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170428689289) 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, 103737374 + ... + 103748655.

It is an arithmetic number, because the mean of its divisors is an integer number (292659045315).

Almost surely, 2^{1170428689589} is an apocalyptic number.

It is an amenable number.

1170428689589 is a deficient number, since it is larger than the sum of its proper divisors (207491671).

1170428689589 is an equidigital number, since it uses as much as digits as its factorization.

1170428689589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207491670.

The product of its (nonzero) digits is 69672960, while the sum is 68.

The spelling of 1170428689589 in words is "one trillion, one hundred seventy billion, four hundred twenty-eight million, six hundred eighty-nine thousand, five hundred eighty-nine".