74794668679 has 4 divisors (see below), whose sum is σ = 74795375880. Its totient is φ = 74793961480.

The previous prime is 74794668677. The next prime is 74794668701. The reversal of 74794668679 is 97686649747.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97686649747 = 82883 ⋅1178609.

It is a cyclic number.

It is not a de Polignac number, because 74794668679 - 2¹ = 74794668677 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 (74794668677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159409 + ... + 418330.

It is an arithmetic number, because the mean of its divisors is an integer number (18698843970).

Almost surely, 2^74794668679 is an apocalyptic number.

74794668679 is a deficient number, since it is larger than the sum of its proper divisors (707201).

74794668679 is a wasteful number, since it uses less digits than its factorization.

74794668679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707200.

The product of its digits is 768144384, while the sum is 73.

The spelling of 74794668679 in words is "seventy-four billion, seven hundred ninety-four million, six hundred sixty-eight thousand, six hundred seventy-nine".