5391391551361 has 2 divisors, whose sum is σ = 5391391551362. Its totient is φ = 5391391551360.

The previous prime is 5391391551353. The next prime is 5391391551373. The reversal of 5391391551361 is 1631551931935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4334286791025 + 1057104760336 = 2081895^2 + 1028156^2 .

It is a cyclic number.

It is not a de Polignac number, because 5391391551361 - 2³ = 5391391551353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5391391551299 and 5391391551308.

It is not a weakly prime, because it can be changed into another prime (5391391551341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2695695775680 + 2695695775681.

It is an arithmetic number, because the mean of its divisors is an integer number (2695695775681).

Almost surely, 2^{5391391551361} is an apocalyptic number.

It is an amenable number.

5391391551361 is a deficient number, since it is larger than the sum of its proper divisors (1).

5391391551361 is an equidigital number, since it uses as much as digits as its factorization.

5391391551361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1640250, while the sum is 52.

The spelling of 5391391551361 in words is "five trillion, three hundred ninety-one billion, three hundred ninety-one million, five hundred fifty-one thousand, three hundred sixty-one".