52147846389 has 4 divisors (see below), whose sum is σ = 69530461856. Its totient is φ = 34765230924.

The previous prime is 52147846379. The next prime is 52147846393. The reversal of 52147846389 is 98364874125.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52147846389 - 2²⁴ = 52131069173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52147846369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8691307729 + ... + 8691307734.

It is an arithmetic number, because the mean of its divisors is an integer number (17382615464).

Almost surely, 2^52147846389 is an apocalyptic number.

It is an amenable number.

52147846389 is a deficient number, since it is larger than the sum of its proper divisors (17382615467).

52147846389 is a wasteful number, since it uses less digits than its factorization.

52147846389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17382615466.

The product of its digits is 11612160, while the sum is 57.

The spelling of 52147846389 in words is "fifty-two billion, one hundred forty-seven million, eight hundred forty-six thousand, three hundred eighty-nine".