51384441315413 has 2 divisors, whose sum is σ = 51384441315414. Its totient is φ = 51384441315412.

The previous prime is 51384441315401. The next prime is 51384441315503. The reversal of 51384441315413 is 31451314448315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41330202326449 + 10054238988964 = 6428857^2 + 3170842^2 .

It is a cyclic number.

It is not a de Polignac number, because 51384441315413 - 2¹⁰ = 51384441314389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51384441317413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25692220657706 + 25692220657707.

It is an arithmetic number, because the mean of its divisors is an integer number (25692220657707).

Almost surely, 2^{51384441315413} is an apocalyptic number.

It is an amenable number.

51384441315413 is a deficient number, since it is larger than the sum of its proper divisors (1).

51384441315413 is an equidigital number, since it uses as much as digits as its factorization.

51384441315413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382400, while the sum is 47.

The spelling of 51384441315413 in words is "fifty-one trillion, three hundred eighty-four billion, four hundred forty-one million, three hundred fifteen thousand, four hundred thirteen".