8630128740671 has 2 divisors, whose sum is σ = 8630128740672. Its totient is φ = 8630128740670.

The previous prime is 8630128740659. The next prime is 8630128740791. The reversal of 8630128740671 is 1760478210368.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8630128740671 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8630128740631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4315064370335 + 4315064370336.

It is an arithmetic number, because the mean of its divisors is an integer number (4315064370336).

Almost surely, 2^{8630128740671} is an apocalyptic number.

8630128740671 is a deficient number, since it is larger than the sum of its proper divisors (1).

8630128740671 is an equidigital number, since it uses as much as digits as its factorization.

8630128740671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 8630128740671 in words is "eight trillion, six hundred thirty billion, one hundred twenty-eight million, seven hundred forty thousand, six hundred seventy-one".