51078326207777 has 6 divisors (see below), whose sum is σ = 56143945335954. Its totient is φ = 46434842006960.

The previous prime is 51078326207773. The next prime is 51078326207791. The reversal of 51078326207777 is 77770262387015.

51078326207777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46966775139361 + 4111551068416 = 6853231^2 + 2027696^2 .

It is not a de Polignac number, because 51078326207777 - 2² = 51078326207773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51078326207773) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 211067463548 + ... + 211067463789.

It is an arithmetic number, because the mean of its divisors is an integer number (9357324222659).

Almost surely, 2^{51078326207777} is an apocalyptic number.

It is an amenable number.

51078326207777 is a deficient number, since it is larger than the sum of its proper divisors (5065619128177).

51078326207777 is a wasteful number, since it uses less digits than its factorization.

51078326207777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422134927359 (or 422134927348 counting only the distinct ones).

The product of its (nonzero) digits is 48404160, while the sum is 62.

The spelling of 51078326207777 in words is "fifty-one trillion, seventy-eight billion, three hundred twenty-six million, two hundred seven thousand, seven hundred seventy-seven".