51323314136 has 8 divisors (see below), whose sum is σ = 96231214020. Its totient is φ = 25661657064.

The previous prime is 51323314127. The next prime is 51323314157. The reversal of 51323314136 is 63141332315.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207707126 + ... + 3207707141.

Almost surely, 2^51323314136 is an apocalyptic number.

It is an amenable number.

51323314136 is a deficient number, since it is larger than the sum of its proper divisors (44907899884).

51323314136 is a wasteful number, since it uses less digits than its factorization.

51323314136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415414273 (or 6415414269 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The spelling of 51323314136 in words is "fifty-one billion, three hundred twenty-three million, three hundred fourteen thousand, one hundred thirty-six".