52135310618 has 16 divisors (see below), whose sum is σ = 80409506760. Its totient is φ = 25341166656.

The previous prime is 52135310611. The next prime is 52135310627. The reversal of 52135310618 is 81601353125.

It can be written as a sum of positive squares in 4 ways, for example, as 47525308009 + 4610002609 = 218003^2 + 67897^2 .

It is a super-2 number, since 2×52135310618² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52135310611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244605 + ... + 2267712.

Almost surely, 2^52135310618 is an apocalyptic number.

52135310618 is a deficient number, since it is larger than the sum of its proper divisors (28274196142).

52135310618 is a wasteful number, since it uses less digits than its factorization.

52135310618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512481.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 52135310618 in words is "fifty-two billion, one hundred thirty-five million, three hundred ten thousand, six hundred eighteen".