2169030789 has 6 divisors (see below), whose sum is σ = 3133044486. Its totient is φ = 1446020520.

The previous prime is 2169030757. The next prime is 2169030803. The reversal of 2169030789 is 9870309612.

It can be written as a sum of positive squares in only one way, i.e., 2166157764 + 2873025 = 46542^2 + 1695^2 .

It is not a de Polignac number, because 2169030789 - 2⁵ = 2169030757 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169031789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120501702 + ... + 120501719.

It is an arithmetic number, because the mean of its divisors is an integer number (522174081).

Almost surely, 2^2169030789 is an apocalyptic number.

It is an amenable number.

2169030789 is a deficient number, since it is larger than the sum of its proper divisors (964013697).

2169030789 is a wasteful number, since it uses less digits than its factorization.

2169030789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241003427 (or 241003424 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2169030789 is about 46572.8546365799. The cubic root of 2169030789 is about 1294.4598133616.

The spelling of 2169030789 in words is "two billion, one hundred sixty-nine million, thirty thousand, seven hundred eighty-nine".