51220438214 has 16 divisors (see below), whose sum is σ = 83824856640. Its totient is φ = 23279352360.

The previous prime is 51220438177. The next prime is 51220438259. The reversal of 51220438214 is 41283402215.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70217 + ... + 327675.

It is an arithmetic number, because the mean of its divisors is an integer number (5239053540).

Almost surely, 2^51220438214 is an apocalyptic number.

51220438214 is a deficient number, since it is larger than the sum of its proper divisors (32604418426).

51220438214 is a wasteful number, since it uses less digits than its factorization.

51220438214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266515.

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 51220438214 in words is "fifty-one billion, two hundred twenty million, four hundred thirty-eight thousand, two hundred fourteen".