52185352018867 has 4 divisors (see below), whose sum is σ = 52185432502456. Its totient is φ = 52185271535280.

The previous prime is 52185352018861. The next prime is 52185352018909. The reversal of 52185352018867 is 76881025358125.

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

It is a cyclic number.

It is not a de Polignac number, because 52185352018867 - 2⁴³ = 43389258996659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52185352018861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39261234 + ... + 40568647.

It is an arithmetic number, because the mean of its divisors is an integer number (13046358125614).

Almost surely, 2^{52185352018867} is an apocalyptic number.

52185352018867 is a deficient number, since it is larger than the sum of its proper divisors (80483589).

52185352018867 is an equidigital number, since it uses as much as digits as its factorization.

52185352018867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80483588.

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 52185352018867 in words is "fifty-two trillion, one hundred eighty-five billion, three hundred fifty-two million, eighteen thousand, eight hundred sixty-seven".