519072698089 has 9 divisors (see below), whose sum is σ = 570559693431. Its totient is φ = 471877066320.

The previous prime is 519072698059. The next prime is 519072698099. The reversal of 519072698089 is 980896270915.

The square root of 519072698089 is 720467.

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

It can be written as a sum of positive squares in only one way, i.e., 254868474025 + 264204224064 = 504845^2 + 514008^2 .

It is not a de Polignac number, because 519072698089 - 2²³ = 519064309481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 519072698089.

It is not an unprimeable number, because it can be changed into a prime (519072698059) 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, 7892389 + ... + 7957885.

Almost surely, 2^519072698089 is an apocalyptic number.

519072698089 is the 720467-th square number.

519072698089 is the 360234-th centered octagonal number.

It is an amenable number.

519072698089 is a deficient number, since it is larger than the sum of its proper divisors (51486995342).

519072698089 is an frugal number, since it uses more digits than its factorization.

519072698089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131016 (or 65508 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 64.

Multiplying 519072698089 by its sum of digits (64), we get a square (33220652677696 = 5763736²).

The spelling of 519072698089 in words is "five hundred nineteen billion, seventy-two million, six hundred ninety-eight thousand, eighty-nine".