718049709 has 12 divisors (see below), whose sum is σ = 1116966396. Its totient is φ = 441876672.

The previous prime is 718049707. The next prime is 718049711. The reversal of 718049709 is 907940817.

718049709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (718049707) and next prime (718049711).

It can be written as a sum of positive squares in 2 ways, for example, as 417998025 + 300051684 = 20445^2 + 17322^2 .

It is not a de Polignac number, because 718049709 - 2¹ = 718049707 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718049707) 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, 3068472 + ... + 3068705.

It is an arithmetic number, because the mean of its divisors is an integer number (93080533).

Almost surely, 2^718049709 is an apocalyptic number.

It is an amenable number.

718049709 is a deficient number, since it is larger than the sum of its proper divisors (398916687).

718049709 is a wasteful number, since it uses less digits than its factorization.

718049709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137196 (or 6137193 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 718049709 is about 26796.4495595965. The cubic root of 718049709 is about 895.4709542433.

The spelling of 718049709 in words is "seven hundred eighteen million, forty-nine thousand, seven hundred nine".