51743384917 has 16 divisors (see below), whose sum is σ = 59589636480. Its totient is φ = 44010966528.

The previous prime is 51743384897. The next prime is 51743384921. The reversal of 51743384917 is 71948334715.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51743384917 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 (51743384617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2953618 + ... + 2971084.

It is an arithmetic number, because the mean of its divisors is an integer number (3724352280).

Almost surely, 2^51743384917 is an apocalyptic number.

It is an amenable number.

51743384917 is a deficient number, since it is larger than the sum of its proper divisors (7846251563).

51743384917 is a wasteful number, since it uses less digits than its factorization.

51743384917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20700.

The product of its digits is 2540160, while the sum is 52.

The spelling of 51743384917 in words is "fifty-one billion, seven hundred forty-three million, three hundred eighty-four thousand, nine hundred seventeen".