51982234648 has 16 divisors (see below), whose sum is σ = 97611524280. Its totient is φ = 25952494848.

The previous prime is 51982234643. The next prime is 51982234699. The reversal of 51982234648 is 84643228915.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51982234595 and 51982234604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51982234643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4822090 + ... + 4832857.

Almost surely, 2^51982234648 is an apocalyptic number.

It is an amenable number.

51982234648 is a deficient number, since it is larger than the sum of its proper divisors (45629289632).

51982234648 is a wasteful number, since it uses less digits than its factorization.

51982234648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655626 (or 9655622 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The spelling of 51982234648 in words is "fifty-one billion, nine hundred eighty-two million, two hundred thirty-four thousand, six hundred forty-eight".