51906671723507 has 8 divisors (see below), whose sum is σ = 52420937782752. Its totient is φ = 51392412304000.

The previous prime is 51906671723483. The next prime is 51906671723551. The reversal of 51906671723507 is 70532717660915.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51906671723507 - 2³⁴ = 51889491854323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51906671723597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14863403 + ... + 18020379.

It is an arithmetic number, because the mean of its divisors is an integer number (6552617222844).

Almost surely, 2^{51906671723507} is an apocalyptic number.

51906671723507 is a deficient number, since it is larger than the sum of its proper divisors (514266059245).

51906671723507 is a wasteful number, since it uses less digits than its factorization.

51906671723507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319869.

The product of its (nonzero) digits is 16669800, while the sum is 59.

The spelling of 51906671723507 in words is "fifty-one trillion, nine hundred six billion, six hundred seventy-one million, seven hundred twenty-three thousand, five hundred seven".