51275823717 has 8 divisors (see below), whose sum is σ = 68371192960. Its totient is φ = 34182168480.

The previous prime is 51275823707. The next prime is 51275823733. The reversal of 51275823717 is 71732857215.

It is a happy number.

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

It is not a de Polignac number, because 51275823717 - 2¹⁶ = 51275758181 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 (51275823707) 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, 356992 + ... + 479577.

It is an arithmetic number, because the mean of its divisors is an integer number (8546399120).

Almost surely, 2^51275823717 is an apocalyptic number.

It is an amenable number.

51275823717 is a deficient number, since it is larger than the sum of its proper divisors (17095369243).

51275823717 is a wasteful number, since it uses less digits than its factorization.

51275823717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857003.

The product of its digits is 823200, while the sum is 48.

The spelling of 51275823717 in words is "fifty-one billion, two hundred seventy-five million, eight hundred twenty-three thousand, seven hundred seventeen".