709442290809 has 12 divisors (see below), whose sum is σ = 1171142829376. Its totient is φ = 405395594712.

The previous prime is 709442290789. The next prime is 709442290889. The reversal of 709442290809 is 908092244907.

It is not a de Polignac number, because 709442290809 - 2¹¹ = 709442288761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (709442290889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5630494309 + ... + 5630494434.

Almost surely, 2^709442290809 is an apocalyptic number.

It is an amenable number.

709442290809 is a deficient number, since it is larger than the sum of its proper divisors (461700538567).

709442290809 is a wasteful number, since it uses less digits than its factorization.

709442290809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11260988756 (or 11260988753 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 709442290809 in words is "seven hundred nine billion, four hundred forty-two million, two hundred ninety thousand, eight hundred nine".