51150212217 has 24 divisors (see below), whose sum is σ = 81417400064. Its totient is φ = 30745026144.

The previous prime is 51150212213. The next prime is 51150212251. The reversal of 51150212217 is 71221205115.

It is not a de Polignac number, because 51150212217 - 2² = 51150212213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51150212213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5078473 + ... + 5088534.

Almost surely, 2^51150212217 is an apocalyptic number.

It is an amenable number.

51150212217 is a deficient number, since it is larger than the sum of its proper divisors (30267187847).

51150212217 is a wasteful number, since it uses less digits than its factorization.

51150212217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10167069 (or 10167066 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The spelling of 51150212217 in words is "fifty-one billion, one hundred fifty million, two hundred twelve thousand, two hundred seventeen".