537447339664 has 45 divisors (see below), whose sum is σ = 1106263151131. Its totient is φ = 252892935680.

The previous prime is 537447339661. The next prime is 537447339673. The reversal of 537447339664 is 466933744735.

The square root of 537447339664 is 733108.

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 3098035600 + 534349304064 = 55660^2 + 730992^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537447339661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 49845954 + ... + 49856734.

Almost surely, 2^537447339664 is an apocalyptic number.

537447339664 is the 733108-th square number.

It is an amenable number.

537447339664 is an abundant number, since it is smaller than the sum of its proper divisors (568815811467).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

537447339664 is an frugal number, since it uses more digits than its factorization.

537447339664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21604 (or 10800 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 61.

The spelling of 537447339664 in words is "five hundred thirty-seven billion, four hundred forty-seven million, three hundred thirty-nine thousand, six hundred sixty-four".