117842587543 has 2 divisors, whose sum is σ = 117842587544. Its totient is φ = 117842587542.

The previous prime is 117842587441. The next prime is 117842587567. The reversal of 117842587543 is 345785248711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117842587543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117842587843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58921293771 + 58921293772.

It is an arithmetic number, because the mean of its divisors is an integer number (58921293772).

Almost surely, 2^117842587543 is an apocalyptic number.

117842587543 is a deficient number, since it is larger than the sum of its proper divisors (1).

117842587543 is an equidigital number, since it uses as much as digits as its factorization.

117842587543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7526400, while the sum is 55.

The spelling of 117842587543 in words is "one hundred seventeen billion, eight hundred forty-two million, five hundred eighty-seven thousand, five hundred forty-three".