51210071717 has 8 divisors (see below), whose sum is σ = 58541313600. Its totient is φ = 43882709184.

The previous prime is 51210071701. The next prime is 51210071719. The reversal of 51210071717 is 71717001215.

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 51210071717 - 2⁴ = 51210071701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51210071719) 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, 941492 + ... + 994397.

It is an arithmetic number, because the mean of its divisors is an integer number (7317664200).

Almost surely, 2^51210071717 is an apocalyptic number.

It is an amenable number.

51210071717 is a deficient number, since it is larger than the sum of its proper divisors (7331241883).

51210071717 is a wasteful number, since it uses less digits than its factorization.

51210071717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939675.

The product of its (nonzero) digits is 3430, while the sum is 32.

The spelling of 51210071717 in words is "fifty-one billion, two hundred ten million, seventy-one thousand, seven hundred seventeen".