51351155444437 has 2 divisors, whose sum is σ = 51351155444438. Its totient is φ = 51351155444436.

The previous prime is 51351155444417. The next prime is 51351155444539. The reversal of 51351155444437 is 73444455115315.

51351155444437 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., 50783952153796 + 567203290641 = 7126286^2 + 753129^2 .

It is a cyclic number.

It is not a de Polignac number, because 51351155444437 - 2²⁷ = 51351021226709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51351155444417) 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, 25675577722218 + 25675577722219.

It is an arithmetic number, because the mean of its divisors is an integer number (25675577722219).

Almost surely, 2^{51351155444437} is an apocalyptic number.

It is an amenable number.

51351155444437 is a deficient number, since it is larger than the sum of its proper divisors (1).

51351155444437 is an equidigital number, since it uses as much as digits as its factorization.

51351155444437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080000, while the sum is 52.

The spelling of 51351155444437 in words is "fifty-one trillion, three hundred fifty-one billion, one hundred fifty-five million, four hundred forty-four thousand, four hundred thirty-seven".