51982345827 has 6 divisors (see below), whose sum is σ = 75085610652. Its totient is φ = 34654897212.

The previous prime is 51982345823. The next prime is 51982345897. The reversal of 51982345827 is 72854328915.

51982345827 is a `hidden beast` number, since 51 + 9 + 8 + 2 + 3 + 4 + 582 + 7 = 666.

It is not a de Polignac number, because 51982345827 - 2² = 51982345823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51982345823) 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 5 ways as a sum of consecutive naturals, for example, 2887908093 + ... + 2887908110.

It is an arithmetic number, because the mean of its divisors is an integer number (12514268442).

Almost surely, 2^51982345827 is an apocalyptic number.

51982345827 is a deficient number, since it is larger than the sum of its proper divisors (23103264825).

51982345827 is a wasteful number, since it uses less digits than its factorization.

51982345827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775816209 (or 5775816206 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 51982345827 in words is "fifty-one billion, nine hundred eighty-two million, three hundred forty-five thousand, eight hundred twenty-seven".