74430543533 has 2 divisors, whose sum is σ = 74430543534. Its totient is φ = 74430543532.

The previous prime is 74430543511. The next prime is 74430543623. The reversal of 74430543533 is 33534503447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63613919524 + 10816624009 = 252218^2 + 104003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74430543533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74430543503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37215271766 + 37215271767.

It is an arithmetic number, because the mean of its divisors is an integer number (37215271767).

Almost surely, 2^74430543533 is an apocalyptic number.

It is an amenable number.

74430543533 is a deficient number, since it is larger than the sum of its proper divisors (1).

74430543533 is an equidigital number, since it uses as much as digits as its factorization.

74430543533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 41.

The spelling of 74430543533 in words is "seventy-four billion, four hundred thirty million, five hundred forty-three thousand, five hundred thirty-three".