51764163917 has 8 divisors (see below), whose sum is σ = 51890208000. Its totient is φ = 51638265360.

The previous prime is 51764163881. The next prime is 51764163947. The reversal of 51764163917 is 71936146715.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51764163917 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 (51764163947) 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, 693584 + ... + 764582.

It is an arithmetic number, because the mean of its divisors is an integer number (6486276000).

Almost surely, 2^51764163917 is an apocalyptic number.

It is an amenable number.

51764163917 is a deficient number, since it is larger than the sum of its proper divisors (126044083).

51764163917 is a wasteful number, since it uses less digits than its factorization.

51764163917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72763.

The product of its digits is 952560, while the sum is 50.

The spelling of 51764163917 in words is "fifty-one billion, seven hundred sixty-four million, one hundred sixty-three thousand, nine hundred seventeen".