6631173734747 has 4 divisors (see below), whose sum is σ = 6631942218720. Its totient is φ = 6630405250776.

The previous prime is 6631173734737. The next prime is 6631173734771. The reversal of 6631173734747 is 7474373711366.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6631173734747 - 2²⁴ = 6631156957531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6631173734737) 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, 384229043 + ... + 384246300.

It is an arithmetic number, because the mean of its divisors is an integer number (1657985554680).

Almost surely, 2^{6631173734747} is an apocalyptic number.

6631173734747 is a deficient number, since it is larger than the sum of its proper divisors (768483973).

6631173734747 is an equidigital number, since it uses as much as digits as its factorization.

6631173734747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768483972.

The product of its digits is 37340352, while the sum is 59.

The spelling of 6631173734747 in words is "six trillion, six hundred thirty-one billion, one hundred seventy-three million, seven hundred thirty-four thousand, seven hundred forty-seven".