8684621472623 has 2 divisors, whose sum is σ = 8684621472624. Its totient is φ = 8684621472622.

The previous prime is 8684621472613. The next prime is 8684621472629. The reversal of 8684621472623 is 3262741264868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8684621472623 - 2¹² = 8684621468527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8684621472629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4342310736311 + 4342310736312.

It is an arithmetic number, because the mean of its divisors is an integer number (4342310736312).

Almost surely, 2^{8684621472623} is an apocalyptic number.

8684621472623 is a deficient number, since it is larger than the sum of its proper divisors (1).

8684621472623 is an equidigital number, since it uses as much as digits as its factorization.

8684621472623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37158912, while the sum is 59.

The spelling of 8684621472623 in words is "eight trillion, six hundred eighty-four billion, six hundred twenty-one million, four hundred seventy-two thousand, six hundred twenty-three".