73532443757 has 2 divisors, whose sum is σ = 73532443758. Its totient is φ = 73532443756.

The previous prime is 73532443741. The next prime is 73532443759. The reversal of 73532443757 is 75734423537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59412112516 + 14120331241 = 243746^2 + 118829^2 .

It is an emirp because it is prime and its reverse (75734423537) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73532443757 - 2⁴ = 73532443741 is a prime.

Together with 73532443759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73532443759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36766221878 + 36766221879.

It is an arithmetic number, because the mean of its divisors is an integer number (36766221879).

Almost surely, 2^73532443757 is an apocalyptic number.

It is an amenable number.

73532443757 is a deficient number, since it is larger than the sum of its proper divisors (1).

73532443757 is an equidigital number, since it uses as much as digits as its factorization.

73532443757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 50.

The spelling of 73532443757 in words is "seventy-three billion, five hundred thirty-two million, four hundred forty-three thousand, seven hundred fifty-seven".