8461670761647 has 6 divisors (see below), whose sum is σ = 12222413322392. Its totient is φ = 5641113841092.

The previous prime is 8461670761637. The next prime is 8461670761681. The reversal of 8461670761647 is 7461670761648.

8461670761647 is a `hidden beast` number, since 8 + 4 + 6 + 1 + 6 + 7 + 0 + 7 + 616 + 4 + 7 = 666.

It is not a de Polignac number, because 8461670761647 - 2¹⁴ = 8461670745263 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 (8461670761637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470092820083 + ... + 470092820100.

Almost surely, 2^{8461670761647} is an apocalyptic number.

8461670761647 is a deficient number, since it is larger than the sum of its proper divisors (3760742560745).

8461670761647 is a wasteful number, since it uses less digits than its factorization.

8461670761647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940185640189 (or 940185640186 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 63.

Subtracting from 8461670761647 its reverse (7461670761648), we obtain a palindrome (999999999999).

The spelling of 8461670761647 in words is "eight trillion, four hundred sixty-one billion, six hundred seventy million, seven hundred sixty-one thousand, six hundred forty-seven".