74368481766689 has 4 divisors (see below), whose sum is σ = 81129252836400. Its totient is φ = 67607710696980.

The previous prime is 74368481766673. The next prime is 74368481766737. The reversal of 74368481766689 is 98666718486347.

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.

It is a cyclic number.

It is not a de Polignac number, because 74368481766689 - 2⁴ = 74368481766673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74368481796689) 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 in 3 ways as a sum of consecutive naturals, for example, 3380385534839 + ... + 3380385534860.

It is an arithmetic number, because the mean of its divisors is an integer number (20282313209100).

Almost surely, 2^{74368481766689} is an apocalyptic number.

It is an amenable number.

74368481766689 is a deficient number, since it is larger than the sum of its proper divisors (6760771069711).

74368481766689 is a wasteful number, since it uses less digits than its factorization.

74368481766689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6760771069710.

The product of its digits is 14046068736, while the sum is 83.

The spelling of 74368481766689 in words is "seventy-four trillion, three hundred sixty-eight billion, four hundred eighty-one million, seven hundred sixty-six thousand, six hundred eighty-nine".