76243530497 has 4 divisors (see below), whose sum is σ = 76245239556. Its totient is φ = 76241821440.

The previous prime is 76243530463. The next prime is 76243530527. The reversal of 76243530497 is 79403534267.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26339991616 + 49903538881 = 162296^2 + 223391^2 .

It is a cyclic number.

It is not a de Polignac number, because 76243530497 - 2¹⁰ = 76243529473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76243500497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785768 + ... + 877449.

It is an arithmetic number, because the mean of its divisors is an integer number (19061309889).

Almost surely, 2^76243530497 is an apocalyptic number.

It is an amenable number.

76243530497 is a deficient number, since it is larger than the sum of its proper divisors (1709059).

76243530497 is a wasteful number, since it uses less digits than its factorization.

76243530497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709058.

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 76243530497 in words is "seventy-six billion, two hundred forty-three million, five hundred thirty thousand, four hundred ninety-seven".