74941393543 has 2 divisors, whose sum is σ = 74941393544. Its totient is φ = 74941393542.

The previous prime is 74941393531. The next prime is 74941393567. The reversal of 74941393543 is 34539314947.

It is a weak prime.

It is an emirp because it is prime and its reverse (34539314947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74941393543 - 2¹⁷ = 74941262471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74941393523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37470696771 + 37470696772.

It is an arithmetic number, because the mean of its divisors is an integer number (37470696772).

Almost surely, 2^74941393543 is an apocalyptic number.

74941393543 is a deficient number, since it is larger than the sum of its proper divisors (1).

74941393543 is an equidigital number, since it uses as much as digits as its factorization.

74941393543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 52.

The spelling of 74941393543 in words is "seventy-four billion, nine hundred forty-one million, three hundred ninety-three thousand, five hundred forty-three".