709897242916 has 27 divisors (see below), whose sum is σ = 1319749774707. Its totient is φ = 334055809920.

The previous prime is 709897242863. The next prime is 709897242919. The reversal of 709897242916 is 619242798907.

The square root of 709897242916 is 842554.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 17846288100 + 692050954816 = 133590^2 + 831896^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709897242919) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28634446 + ... + 28659226.

Almost surely, 2^709897242916 is an apocalyptic number.

709897242916 is the 842554-th square number.

It is an amenable number.

709897242916 is a deficient number, since it is larger than the sum of its proper divisors (609852531791).

709897242916 is an frugal number, since it uses more digits than its factorization.

709897242916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49600 (or 24800 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 64.

Multiplying 709897242916 by its sum of digits (64), we get a square (45433423546624 = 6740432²).

The spelling of 709897242916 in words is "seven hundred nine billion, eight hundred ninety-seven million, two hundred forty-two thousand, nine hundred sixteen".