51922714212 has 18 divisors (see below), whose sum is σ = 131249083238. Its totient is φ = 17307571392.

The previous prime is 51922714087. The next prime is 51922714241. The reversal of 51922714212 is 21241722915.

It is a happy number.

51922714212 is a `hidden beast` number, since 5 + 1 + 9 + 227 + 1 + 421 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48411440676 + 3511273536 = 220026^2 + 59256^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×51922714212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1442297617 = 51922714212 / (5 + 1 + 9 + 2 + 2 + 7 + 1 + 4 + 2 + 1 + 2).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 721148773 + ... + 721148844.

Almost surely, 2^51922714212 is an apocalyptic number.

It is an amenable number.

51922714212 is an abundant number, since it is smaller than the sum of its proper divisors (79326369026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51922714212 is a wasteful number, since it uses less digits than its factorization.

51922714212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442297627 (or 1442297622 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The spelling of 51922714212 in words is "fifty-one billion, nine hundred twenty-two million, seven hundred fourteen thousand, two hundred twelve".