537997311289 has 9 divisors (see below), whose sum is σ = 542884118959. Its totient is φ = 533154123040.

The previous prime is 537997311283. The next prime is 537997311317. The reversal of 537997311289 is 982113799735.

The square root of 537997311289 is 733483.

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., 9479943225 + 528517368064 = 97365^2 + 726992^2 .

It is not a de Polignac number, because 537997311289 - 2³⁷ = 400558357817 is a prime.

It is a super-2 number, since 2×537997311289² (a number of 24 digits) contains 22 as substring.

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 537997311289.

It is not an unprimeable number, because it can be changed into a prime (537997311283) 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, 82880334 + ... + 82886824.

Almost surely, 2^537997311289 is an apocalyptic number.

537997311289 is the 733483-rd square number.

537997311289 is the 366742-nd centered octagonal number.

It is an amenable number.

537997311289 is a deficient number, since it is larger than the sum of its proper divisors (4886807670).

537997311289 is an frugal number, since it uses more digits than its factorization.

537997311289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13208 (or 6604 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 64.

Multiplying 537997311289 by its sum of digits (64), we get a square (34431827922496 = 5867864²).

The spelling of 537997311289 in words is "five hundred thirty-seven billion, nine hundred ninety-seven million, three hundred eleven thousand, two hundred eighty-nine".