52242129818 has 4 divisors (see below), whose sum is σ = 78363194730. Its totient is φ = 26121064908.

The previous prime is 52242129811. The next prime is 52242129883. The reversal of 52242129818 is 81892124225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48590707489 + 3651422329 = 220433^2 + 60427^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52242129811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13060532453 + ... + 13060532456.

Almost surely, 2^52242129818 is an apocalyptic number.

52242129818 is a deficient number, since it is larger than the sum of its proper divisors (26121064912).

52242129818 is a wasteful number, since it uses less digits than its factorization.

52242129818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26121064911.

The product of its digits is 184320, while the sum is 44.

The spelling of 52242129818 in words is "fifty-two billion, two hundred forty-two million, one hundred twenty-nine thousand, eight hundred eighteen".