8604431869945 has 4 divisors (see below), whose sum is σ = 10325318243940. Its totient is φ = 6883545495952.

The previous prime is 8604431869939. The next prime is 8604431869963. The reversal of 8604431869945 is 5499681344068.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4122459187456 + 4481972682489 = 2030384^2 + 2117067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8604431869945 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860443186990 + ... + 860443186999.

It is an arithmetic number, because the mean of its divisors is an integer number (2581329560985).

Almost surely, 2^{8604431869945} is an apocalyptic number.

It is an amenable number.

8604431869945 is a deficient number, since it is larger than the sum of its proper divisors (1720886373995).

8604431869945 is a wasteful number, since it uses less digits than its factorization.

8604431869945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720886373994.

The product of its (nonzero) digits is 179159040, while the sum is 67.

The spelling of 8604431869945 in words is "eight trillion, six hundred four billion, four hundred thirty-one million, eight hundred sixty-nine thousand, nine hundred forty-five".