719363511409 has 9 divisors (see below), whose sum is σ = 730318222137. Its totient is φ = 708570764484.

The previous prime is 719363511403. The next prime is 719363511413. The reversal of 719363511409 is 904115363917.

The square root of 719363511409 is 848153.

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

719363511409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 719363511409 - 2¹⁹ = 719362987121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (719363511403) 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, 56819922 + ... + 56832580.

Almost surely, 2^719363511409 is an apocalyptic number.

719363511409 is the 848153-rd square number.

719363511409 is the 424077-th centered octagonal number.

It is an amenable number.

719363511409 is a deficient number, since it is larger than the sum of its proper divisors (10954710728).

719363511409 is an frugal number, since it uses more digits than its factorization.

719363511409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25452 (or 12726 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

Multiplying 719363511409 by its sum of digits (49), we get a square (35248812059041 = 5937071²).

The spelling of 719363511409 in words is "seven hundred nineteen billion, three hundred sixty-three million, five hundred eleven thousand, four hundred nine".