2109470769 has 20 divisors (see below), whose sum is σ = 3601354944. Its totient is φ = 1205411544.

The previous prime is 2109470761. The next prime is 2109470773. The reversal of 2109470769 is 9670749012.

2109470769 is a `hidden beast` number, since 2 + 109 + 470 + 76 + 9 = 666.

It is not a de Polignac number, because 2109470769 - 2³ = 2109470761 is a prime.

It is a super-2 number, since 2×2109470769² = 8899733850530902722, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2109470761) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1859637 + ... + 1860770.

Almost surely, 2^2109470769 is an apocalyptic number.

It is an amenable number.

2109470769 is a deficient number, since it is larger than the sum of its proper divisors (1491884175).

2109470769 is an equidigital number, since it uses as much as digits as its factorization.

2109470769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720426 (or 3720417 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 2109470769 is about 45928.9752661650. The cubic root of 2109470769 is about 1282.5013686248.

It can be divided in two parts, 2109 and 470769, that added together give a triangular number (472878 = T₉₇₂).

The spelling of 2109470769 in words is "two billion, one hundred nine million, four hundred seventy thousand, seven hundred sixty-nine".