51064866917 has 8 divisors (see below), whose sum is σ = 54070659072. Its totient is φ = 48059294400.

The previous prime is 51064866907. The next prime is 51064866967. The reversal of 51064866917 is 71966846015.

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 51064866917 - 2¹⁰ = 51064865893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51064866907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849692 + ... + 907802.

It is an arithmetic number, because the mean of its divisors is an integer number (6758832384).

Almost surely, 2^51064866917 is an apocalyptic number.

It is an amenable number.

51064866917 is a deficient number, since it is larger than the sum of its proper divisors (3005792155).

51064866917 is a wasteful number, since it uses less digits than its factorization.

51064866917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109819.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 51064866917 in words is "fifty-one billion, sixty-four million, eight hundred sixty-six thousand, nine hundred seventeen".