51675685817 has 12 divisors (see below), whose sum is σ = 62051648256. Its totient is φ = 42864622920.

The previous prime is 51675685807. The next prime is 51675685823. The reversal of 51675685817 is 71858657615.

It is not a de Polignac number, because 51675685817 - 2¹⁴ = 51675669433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51675685807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17008253 + ... + 17011290.

It is an arithmetic number, because the mean of its divisors is an integer number (5170970688).

Almost surely, 2^51675685817 is an apocalyptic number.

It is an amenable number.

51675685817 is a deficient number, since it is larger than the sum of its proper divisors (10375962439).

51675685817 is a wasteful number, since it uses less digits than its factorization.

51675685817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34019588 (or 34019581 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 59.

The spelling of 51675685817 in words is "fifty-one billion, six hundred seventy-five million, six hundred eighty-five thousand, eight hundred seventeen".