51214379838 has 8 divisors (see below), whose sum is σ = 102428759688. Its totient is φ = 17071459944.

The previous prime is 51214379773. The next prime is 51214379851. The reversal of 51214379838 is 83897341215.

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

51214379838 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 4267864981 + ... + 4267864992.

It is an arithmetic number, because the mean of its divisors is an integer number (12803594961).

Almost surely, 2^51214379838 is an apocalyptic number.

51214379838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51214379838 is a wasteful number, since it uses less digits than its factorization.

51214379838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8535729978.

The product of its digits is 1451520, while the sum is 51.

The spelling of 51214379838 in words is "fifty-one billion, two hundred fourteen million, three hundred seventy-nine thousand, eight hundred thirty-eight".