74364644646347 has 16 divisors (see below), whose sum is σ = 81282571130880. Its totient is φ = 67473008508000.

The previous prime is 74364644646319. The next prime is 74364644646371.

It is a happy number.

74364644646347 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 74364644646347 - 2⁸ = 74364644646091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74364644646317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36659597 + ... + 38634897.

It is an arithmetic number, because the mean of its divisors is an integer number (5080160695680).

Almost surely, 2^{74364644646347} is an apocalyptic number.

74364644646347 is a deficient number, since it is larger than the sum of its proper divisors (6917926484533).

74364644646347 is a wasteful number, since it uses less digits than its factorization.

74364644646347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981954.

The product of its digits is 2341011456, while the sum is 68.

The spelling of 74364644646347 in words is "seventy-four trillion, three hundred sixty-four billion, six hundred forty-four million, six hundred forty-six thousand, three hundred forty-seven".