537780618 has 96 divisors (see below), whose sum is σ = 1318052736. Its totient is φ = 157538304.

The previous prime is 537780599. The next prime is 537780629. The reversal of 537780618 is 816087735.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 301746 + ... + 303522.

It is an arithmetic number, because the mean of its divisors is an integer number (13729716).

Almost surely, 2^537780618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537780618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659026368).

537780618 is an abundant number, since it is smaller than the sum of its proper divisors (780272118).

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

537780618 is a wasteful number, since it uses less digits than its factorization.

537780618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 537780618 is about 23190.0974124733. The cubic root of 537780618 is about 813.2081365044.

The spelling of 537780618 in words is "five hundred thirty-seven million, seven hundred eighty thousand, six hundred eighteen".