75639342329 has 2 divisors, whose sum is σ = 75639342330. Its totient is φ = 75639342328.

The previous prime is 75639342283. The next prime is 75639342391. The reversal of 75639342329 is 92324393657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46849736704 + 28789605625 = 216448^2 + 169675^2 .

It is a cyclic number.

It is not a de Polignac number, because 75639342329 - 2¹² = 75639338233 is a prime.

It is a super-2 number, since 2×75639342329² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75639348329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37819671164 + 37819671165.

It is an arithmetic number, because the mean of its divisors is an integer number (37819671165).

Almost surely, 2^75639342329 is an apocalyptic number.

It is an amenable number.

75639342329 is a deficient number, since it is larger than the sum of its proper divisors (1).

75639342329 is an equidigital number, since it uses as much as digits as its factorization.

75639342329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 53.

The spelling of 75639342329 in words is "seventy-five billion, six hundred thirty-nine million, three hundred forty-two thousand, three hundred twenty-nine".