51361003781119 has 2 divisors, whose sum is σ = 51361003781120. Its totient is φ = 51361003781118.

The previous prime is 51361003781117. The next prime is 51361003781147. The reversal of 51361003781119 is 91118730016315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51361003781119 - 2¹ = 51361003781117 is a prime.

It is a super-2 number, since 2×51361003781119² (a number of 28 digits) contains 22 as substring.

Together with 51361003781117, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51361003781111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25680501890559 + 25680501890560.

It is an arithmetic number, because the mean of its divisors is an integer number (25680501890560).

Almost surely, 2^{51361003781119} is an apocalyptic number.

51361003781119 is a deficient number, since it is larger than the sum of its proper divisors (1).

51361003781119 is an equidigital number, since it uses as much as digits as its factorization.

51361003781119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 51361003781119 in words is "fifty-one trillion, three hundred sixty-one billion, three million, seven hundred eighty-one thousand, one hundred nineteen".