52849637686 has 4 divisors (see below), whose sum is σ = 79274456532. Its totient is φ = 26424818842.

The previous prime is 52849637681. The next prime is 52849637741. The reversal of 52849637686 is 68673694825.

52849637686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52849637681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13212409420 + ... + 13212409423.

It is an arithmetic number, because the mean of its divisors is an integer number (19818614133).

Almost surely, 2^52849637686 is an apocalyptic number.

52849637686 is a deficient number, since it is larger than the sum of its proper divisors (26424818846).

52849637686 is a wasteful number, since it uses less digits than its factorization.

52849637686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26424818845.

The product of its digits is 104509440, while the sum is 64.

The spelling of 52849637686 in words is "fifty-two billion, eight hundred forty-nine million, six hundred thirty-seven thousand, six hundred eighty-six".