8617947085387 has 16 divisors (see below), whose sum is σ = 8962334583552. Its totient is φ = 8277728693760.

The previous prime is 8617947085381. The next prime is 8617947085409. The reversal of 8617947085387 is 7835807497168.

It is a cyclic number.

It is not a de Polignac number, because 8617947085387 - 2²³ = 8617938696779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8617947085381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26496783 + ... + 26820055.

It is an arithmetic number, because the mean of its divisors is an integer number (560145911472).

Almost surely, 2^{8617947085387} is an apocalyptic number.

8617947085387 is a deficient number, since it is larger than the sum of its proper divisors (344387498165).

8617947085387 is a wasteful number, since it uses less digits than its factorization.

8617947085387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329718.

The product of its (nonzero) digits is 568995840, while the sum is 73.

The spelling of 8617947085387 in words is "eight trillion, six hundred seventeen billion, nine hundred forty-seven million, eighty-five thousand, three hundred eighty-seven".