2072869709 has 2 divisors, whose sum is σ = 2072869710. Its totient is φ = 2072869708.

The previous prime is 2072869691. The next prime is 2072869753. The reversal of 2072869709 is 9079682702.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038974025 + 33895684 = 45155^2 + 5822^2 .

It is a cyclic number.

It is not a de Polignac number, because 2072869709 - 2²⁰ = 2071821133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2072469709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036434854 + 1036434855.

It is an arithmetic number, because the mean of its divisors is an integer number (1036434855).

Almost surely, 2^2072869709 is an apocalyptic number.

It is an amenable number.

2072869709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072869709 is an equidigital number, since it uses as much as digits as its factorization.

2072869709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 2072869709 is about 45528.7789096084. The cubic root of 2072869709 is about 1275.0405644405.

The spelling of 2072869709 in words is "two billion, seventy-two million, eight hundred sixty-nine thousand, seven hundred nine".