8364217784673 has 8 divisors (see below), whose sum is σ = 11739253031200. Its totient is φ = 5282663863968.

The previous prime is 8364217784623. The next prime is 8364217784723. The reversal of 8364217784673 is 3764877124638.

It is an interprime number because it is at equal distance from previous prime (8364217784623) and next prime (8364217784723).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-8364217784673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8364217784623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73370331388 + ... + 73370331501.

It is an arithmetic number, because the mean of its divisors is an integer number (1467406628900).

Almost surely, 2^{8364217784673} is an apocalyptic number.

It is an amenable number.

8364217784673 is a deficient number, since it is larger than the sum of its proper divisors (3375035246527).

8364217784673 is a wasteful number, since it uses less digits than its factorization.

8364217784673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146740662911.

The product of its digits is 227598336, while the sum is 66.

The spelling of 8364217784673 in words is "eight trillion, three hundred sixty-four billion, two hundred seventeen million, seven hundred eighty-four thousand, six hundred seventy-three".