77693324717 has 4 divisors (see below), whose sum is σ = 77700855456. Its totient is φ = 77685793980.

The previous prime is 77693324701. The next prime is 77693324729. The reversal of 77693324717 is 71742339677.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71742339677 = 32423 ⋅2212699.

It is a cyclic number.

It is not a de Polignac number, because 77693324717 - 2⁴ = 77693324701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77693324117) 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, 3749873 + ... + 3770534.

It is an arithmetic number, because the mean of its divisors is an integer number (19425213864).

Almost surely, 2^77693324717 is an apocalyptic number.

It is an amenable number.

77693324717 is a deficient number, since it is larger than the sum of its proper divisors (7530739).

77693324717 is a wasteful number, since it uses less digits than its factorization.

77693324717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530738.

The product of its digits is 9335088, while the sum is 56.

The spelling of 77693324717 in words is "seventy-seven billion, six hundred ninety-three million, three hundred twenty-four thousand, seven hundred seventeen".