51042264642349 has 2 divisors, whose sum is σ = 51042264642350. Its totient is φ = 51042264642348.

The previous prime is 51042264642263. The next prime is 51042264642461. The reversal of 51042264642349 is 94324646224015.

51042264642349 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 can be written as a sum of positive squares in only one way, i.e., 50651076939849 + 391187702500 = 7116957^2 + 625450^2 .

It is a cyclic number.

It is not a de Polignac number, because 51042264642349 - 2⁷ = 51042264642221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51042264642296 and 51042264642305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51042264642049) 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, 25521132321174 + 25521132321175.

It is an arithmetic number, because the mean of its divisors is an integer number (25521132321175).

Almost surely, 2^{51042264642349} is an apocalyptic number.

It is an amenable number.

51042264642349 is a deficient number, since it is larger than the sum of its proper divisors (1).

51042264642349 is an equidigital number, since it uses as much as digits as its factorization.

51042264642349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 51042264642349 in words is "fifty-one trillion, forty-two billion, two hundred sixty-four million, six hundred forty-two thousand, three hundred forty-nine".