51980345504 has 24 divisors (see below), whose sum is σ = 102341641248. Its totient is φ = 25988817600.

The previous prime is 51980345479. The next prime is 51980345513. The reversal of 51980345504 is 40554308915.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911429 + ... + 966779.

It is an arithmetic number, because the mean of its divisors is an integer number (4264235052).

Almost surely, 2^51980345504 is an apocalyptic number.

It is an amenable number.

51980345504 is a deficient number, since it is larger than the sum of its proper divisors (50361295744).

51980345504 is a wasteful number, since it uses less digits than its factorization.

51980345504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84708 (or 84700 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 51980345504 in words is "fifty-one billion, nine hundred eighty million, three hundred forty-five thousand, five hundred four".