74664466446647 has 8 divisors (see below), whose sum is σ = 93088165959552. Its totient is φ = 58180103724600.

The previous prime is 74664466446643. The next prime is 74664466446659.

74664466446647 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74664466446647 - 2² = 74664466446643 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 (74664466446643) 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 7 ways as a sum of consecutive naturals, for example, 484834197629 + ... + 484834197782.

It is an arithmetic number, because the mean of its divisors is an integer number (11636020744944).

Almost surely, 2^{74664466446647} is an apocalyptic number.

74664466446647 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74664466446647 is a deficient number, since it is larger than the sum of its proper divisors (18423699512905).

74664466446647 is a wasteful number, since it uses less digits than its factorization.

74664466446647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969668395429.

The product of its digits is 9364045824, while the sum is 74.

The spelling of 74664466446647 in words is "seventy-four trillion, six hundred sixty-four billion, four hundred sixty-six million, four hundred forty-six thousand, six hundred forty-seven".