8473556665539 has 64 divisors (see below), whose sum is σ = 14402501836800. Its totient is φ = 4823240196384.

The previous prime is 8473556665489. The next prime is 8473556665579. The reversal of 8473556665539 is 9355666553748.

It is not a de Polignac number, because 8473556665539 - 2⁷ = 8473556665411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8473556665579) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94358542 + ... + 94448300.

It is an arithmetic number, because the mean of its divisors is an integer number (225039091200).

Almost surely, 2^{8473556665539} is an apocalyptic number.

8473556665539 is a deficient number, since it is larger than the sum of its proper divisors (5928945171261).

8473556665539 is a wasteful number, since it uses less digits than its factorization.

8473556665539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91709 (or 91703 counting only the distinct ones).

The product of its digits is 2449440000, while the sum is 72.

The spelling of 8473556665539 in words is "eight trillion, four hundred seventy-three billion, five hundred fifty-six million, six hundred sixty-five thousand, five hundred thirty-nine".