1361257625543 has 2 divisors, whose sum is σ = 1361257625544. Its totient is φ = 1361257625542.

The previous prime is 1361257625527. The next prime is 1361257625603. The reversal of 1361257625543 is 3455267521631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361257625543 - 2⁴ = 1361257625527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1361257625491 and 1361257625500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361257625503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680628812771 + 680628812772.

It is an arithmetic number, because the mean of its divisors is an integer number (680628812772).

Almost surely, 2^{1361257625543} is an apocalyptic number.

1361257625543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361257625543 is an equidigital number, since it uses as much as digits as its factorization.

1361257625543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 50.

The spelling of 1361257625543 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-seven million, six hundred twenty-five thousand, five hundred forty-three".