537258618 has 48 divisors (see below), whose sum is σ = 1269515520. Its totient is φ = 163212192.

The previous prime is 537258563. The next prime is 537258643. The reversal of 537258618 is 816852735.

537258618 is a `hidden beast` number, since 5 + 3 + 7 + 25 + 8 + 618 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3955 + ... + 33017.

It is an arithmetic number, because the mean of its divisors is an integer number (26448240).

Almost surely, 2^537258618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537258618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634757760).

537258618 is an abundant number, since it is smaller than the sum of its proper divisors (732256902).

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

537258618 is a wasteful number, since it uses less digits than its factorization.

537258618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29163 (or 29160 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 537258618 is about 23178.8398760594. The cubic root of 537258618 is about 812.9449361998.

The spelling of 537258618 in words is "five hundred thirty-seven million, two hundred fifty-eight thousand, six hundred eighteen".