537645864 has 128 divisors (see below), whose sum is σ = 1568931840. Its totient is φ = 150377472.

The previous prime is 537645851. The next prime is 537645881. The reversal of 537645864 is 468546735.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2410857 + ... + 2411079.

It is an arithmetic number, because the mean of its divisors is an integer number (12257280).

Almost surely, 2^537645864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537645864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784465920).

537645864 is an abundant number, since it is smaller than the sum of its proper divisors (1031285976).

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

537645864 is a wasteful number, since it uses less digits than its factorization.

537645864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 475 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The square root of 537645864 is about 23187.1918092726. The cubic root of 537645864 is about 813.1402078115.

The spelling of 537645864 in words is "five hundred thirty-seven million, six hundred forty-five thousand, eight hundred sixty-four".