74747688674747 has 4 divisors (see below), whose sum is σ = 81542933099736. Its totient is φ = 67952444249760.

The previous prime is 74747688674741. The next prime is 74747688674831.

74747688674747 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74747688674747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74747688674741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3397622212478 + ... + 3397622212499.

It is an arithmetic number, because the mean of its divisors is an integer number (20385733274934).

Almost surely, 2^{74747688674747} is an apocalyptic number.

74747688674747 is a deficient number, since it is larger than the sum of its proper divisors (6795244424989).

74747688674747 is a wasteful number, since it uses less digits than its factorization.

74747688674747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795244424988.

The product of its digits is 69392203776, while the sum is 86.

The spelling of 74747688674747 in words is "seventy-four trillion, seven hundred forty-seven billion, six hundred eighty-eight million, six hundred seventy-four thousand, seven hundred forty-seven".