51936657008 has 20 divisors (see below), whose sum is σ = 100644722760. Its totient is φ = 25963825344.

The previous prime is 51936656999. The next prime is 51936657013. The reversal of 51936657008 is 80075663915.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185303 + ... + 371766.

It is an arithmetic number, because the mean of its divisors is an integer number (5032236138).

Almost surely, 2^51936657008 is an apocalyptic number.

It is an amenable number.

51936657008 is a deficient number, since it is larger than the sum of its proper divisors (48708065752).

51936657008 is a wasteful number, since it uses less digits than its factorization.

51936657008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562904 (or 562898 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 51936657008 in words is "fifty-one billion, nine hundred thirty-six million, six hundred fifty-seven thousand, eight".