51228077305843 has 4 divisors (see below), whose sum is σ = 51524193359808. Its totient is φ = 50931961251880.

The previous prime is 51228077305841. The next prime is 51228077305849. The reversal of 51228077305843 is 34850377082215.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51228077305843 - 2¹ = 51228077305841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51228077305841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148058026723 + ... + 148058027068.

It is an arithmetic number, because the mean of its divisors is an integer number (12881048339952).

Almost surely, 2^{51228077305843} is an apocalyptic number.

51228077305843 is a deficient number, since it is larger than the sum of its proper divisors (296116053965).

51228077305843 is a wasteful number, since it uses less digits than its factorization.

51228077305843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296116053964.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 51228077305843 in words is "fifty-one trillion, two hundred twenty-eight billion, seventy-seven million, three hundred five thousand, eight hundred forty-three".