51707169759 has 8 divisors (see below), whose sum is σ = 78791877760. Its totient is φ = 29546954136.

The previous prime is 51707169719. The next prime is 51707169779. The reversal of 51707169759 is 95796170715.

It is a happy number.

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

It is not a de Polignac number, because 51707169759 - 2¹² = 51707165663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51707169699 and 51707169708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51707169719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231123069 + ... + 1231123110.

It is an arithmetic number, because the mean of its divisors is an integer number (9848984720).

Almost surely, 2^51707169759 is an apocalyptic number.

51707169759 is a deficient number, since it is larger than the sum of its proper divisors (27084708001).

51707169759 is a wasteful number, since it uses less digits than its factorization.

51707169759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462246189.

The product of its (nonzero) digits is 4167450, while the sum is 57.

The spelling of 51707169759 in words is "fifty-one billion, seven hundred seven million, one hundred sixty-nine thousand, seven hundred fifty-nine".