51156351444047 has 2 divisors, whose sum is σ = 51156351444048. Its totient is φ = 51156351444046.

The previous prime is 51156351444041. The next prime is 51156351444101. The reversal of 51156351444047 is 74044415365115.

It is a happy number.

51156351444047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51156351444047 - 2²² = 51156347249743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51156351443986 and 51156351444004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51156351444041) 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 as a sum of consecutive naturals, namely, 25578175722023 + 25578175722024.

It is an arithmetic number, because the mean of its divisors is an integer number (25578175722024).

Almost surely, 2^{51156351444047} is an apocalyptic number.

51156351444047 is a deficient number, since it is larger than the sum of its proper divisors (1).

51156351444047 is an equidigital number, since it uses as much as digits as its factorization.

51156351444047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 51156351444047 in words is "fifty-one trillion, one hundred fifty-six billion, three hundred fifty-one million, four hundred forty-four thousand, forty-seven".