1427317517543 has 2 divisors, whose sum is σ = 1427317517544. Its totient is φ = 1427317517542.

The previous prime is 1427317517491. The next prime is 1427317517573. The reversal of 1427317517543 is 3457157137241.

It is a strong prime.

It is an emirp because it is prime and its reverse (3457157137241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1427317517543 - 2⁸ = 1427317517287 is a prime.

It is a super-2 number, since 2×1427317517543² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1427317517491 and 1427317517500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427317517573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713658758771 + 713658758772.

It is an arithmetic number, because the mean of its divisors is an integer number (713658758772).

Almost surely, 2^{1427317517543} is an apocalyptic number.

1427317517543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427317517543 is an equidigital number, since it uses as much as digits as its factorization.

1427317517543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 50.

The spelling of 1427317517543 in words is "one trillion, four hundred twenty-seven billion, three hundred seventeen million, five hundred seventeen thousand, five hundred forty-three".