8461786449071 has 4 divisors (see below), whose sum is σ = 8959538593152. Its totient is φ = 7964034304992.

The previous prime is 8461786449059. The next prime is 8461786449091. The reversal of 8461786449071 is 1709446871648.

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

It is not a de Polignac number, because 8461786449071 - 2³⁴ = 8444606579887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8461786448989 and 8461786449007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461786449091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248876072015 + ... + 248876072048.

It is an arithmetic number, because the mean of its divisors is an integer number (2239884648288).

Almost surely, 2^{8461786449071} is an apocalyptic number.

8461786449071 is a deficient number, since it is larger than the sum of its proper divisors (497752144081).

8461786449071 is a wasteful number, since it uses less digits than its factorization.

8461786449071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497752144080.

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 8461786449071 in words is "eight trillion, four hundred sixty-one billion, seven hundred eighty-six million, four hundred forty-nine thousand, seventy-one".