8646742785087 has 40 divisors (see below), whose sum is σ = 14177436261120. Its totient is φ = 5208300084240.

The previous prime is 8646742785071. The next prime is 8646742785091. The reversal of 8646742785087 is 7805872476468.

8646742785087 is a `hidden beast` number, since 8 + 6 + 4 + 6 + 7 + 42 + 78 + 508 + 7 = 666.

It is not a de Polignac number, because 8646742785087 - 2⁴ = 8646742785071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8646742785007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29623287 + ... + 29913752.

It is an arithmetic number, because the mean of its divisors is an integer number (354435906528).

Almost surely, 2^{8646742785087} is an apocalyptic number.

8646742785087 is a deficient number, since it is larger than the sum of its proper divisors (5530693476033).

8646742785087 is a wasteful number, since it uses less digits than its factorization.

8646742785087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59537225 (or 59537216 counting only the distinct ones).

The product of its (nonzero) digits is 1011548160, while the sum is 72.

The spelling of 8646742785087 in words is "eight trillion, six hundred forty-six billion, seven hundred forty-two million, seven hundred eighty-five thousand, eighty-seven".