519144747289 has 9 divisors (see below), whose sum is σ = 603908940501. Its totient is φ = 444976888860.

The previous prime is 519144747271. The next prime is 519144747293. The reversal of 519144747289 is 982747441915.

The square root of 519144747289 is 720517.

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

It is not a de Polignac number, because 519144747289 - 2⁵ = 519144747257 is a prime.

It is a super-2 number, since 2×519144747289² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (519144747299) 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, 4992154 + ... + 5095084.

It is an arithmetic number, because the mean of its divisors is an integer number (67100993389).

Almost surely, 2^519144747289 is an apocalyptic number.

519144747289 is the 720517-th square number.

519144747289 is the 360259-th centered octagonal number.

It is an amenable number.

519144747289 is a deficient number, since it is larger than the sum of its proper divisors (84764193212).

519144747289 is an frugal number, since it uses more digits than its factorization.

519144747289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205876 (or 102938 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 61.

The spelling of 519144747289 in words is "five hundred nineteen billion, one hundred forty-four million, seven hundred forty-seven thousand, two hundred eighty-nine".