51214705845 has 8 divisors (see below), whose sum is σ = 81943529376. Its totient is φ = 27314509776.

The previous prime is 51214705823. The next prime is 51214705891. The reversal of 51214705845 is 54850741215.

It is a happy number.

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

It is not a de Polignac number, because 51214705845 - 2⁵ = 51214705813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51214705797 and 51214705806.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1707156847 + ... + 1707156876.

It is an arithmetic number, because the mean of its divisors is an integer number (10242941172).

Almost surely, 2^51214705845 is an apocalyptic number.

It is an amenable number.

51214705845 is a deficient number, since it is larger than the sum of its proper divisors (30728823531).

51214705845 is a wasteful number, since it uses less digits than its factorization.

51214705845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414313731.

The product of its (nonzero) digits is 224000, while the sum is 42.

The spelling of 51214705845 in words is "fifty-one billion, two hundred fourteen million, seven hundred five thousand, eight hundred forty-five".