8461670761648 has 20 divisors (see below), whose sum is σ = 17655601493488. Its totient is φ = 3905386505280.

The previous prime is 8461670761637. The next prime is 8461670761681.

It is a happy number.

8461670761648 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8461670761648.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20340554508 + ... + 20340554923.

Almost surely, 2^{8461670761648} is an apocalyptic number.

It is an amenable number.

8461670761648 is an abundant number, since it is smaller than the sum of its proper divisors (9193930731840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8461670761648 is a wasteful number, since it uses less digits than its factorization.

8461670761648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40681109452 (or 40681109446 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 8461670761648 in words is "eight trillion, four hundred sixty-one billion, six hundred seventy million, seven hundred sixty-one thousand, six hundred forty-eight".