51683534245 has 24 divisors (see below), whose sum is σ = 72433515168. Its totient is φ = 35298900000.

The previous prime is 51683534239. The next prime is 51683534267. The reversal of 51683534245 is 54243538615.

It is a happy number.

It is not a de Polignac number, because 51683534245 - 2³ = 51683534237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51683534195 and 51683534204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358731 + ... + 481720.

It is an arithmetic number, because the mean of its divisors is an integer number (3018063132).

Almost surely, 2^51683534245 is an apocalyptic number.

It is an amenable number.

51683534245 is a deficient number, since it is larger than the sum of its proper divisors (20749980923).

51683534245 is a wasteful number, since it uses less digits than its factorization.

51683534245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840721 (or 840714 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The spelling of 51683534245 in words is "fifty-one billion, six hundred eighty-three million, five hundred thirty-four thousand, two hundred forty-five".