51617228289 has 8 divisors (see below), whose sum is σ = 75079604832. Its totient is φ = 31283168640.

The previous prime is 51617228281. The next prime is 51617228297. The reversal of 51617228289 is 98282271615.

It is an interprime number because it is at equal distance from previous prime (51617228281) and next prime (51617228297).

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

It is not a de Polignac number, because 51617228289 - 2³ = 51617228281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51617228281) 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, 782079184 + ... + 782079249.

It is an arithmetic number, because the mean of its divisors is an integer number (9384950604).

Almost surely, 2^51617228289 is an apocalyptic number.

It is an amenable number.

51617228289 is a deficient number, since it is larger than the sum of its proper divisors (23462376543).

51617228289 is a wasteful number, since it uses less digits than its factorization.

51617228289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564158447.

The product of its digits is 967680, while the sum is 51.

The spelling of 51617228289 in words is "fifty-one billion, six hundred seventeen million, two hundred twenty-eight thousand, two hundred eighty-nine".