8704666910621 has 4 divisors (see below), whose sum is σ = 9496000266144. Its totient is φ = 7913333555100.

The previous prime is 8704666910573. The next prime is 8704666910669. The reversal of 8704666910621 is 1260196664078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8704666910573) and next prime (8704666910669).

It is a cyclic number.

It is not a de Polignac number, because 8704666910621 - 2¹⁴ = 8704666894237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8704666910671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395666677745 + ... + 395666677766.

It is an arithmetic number, because the mean of its divisors is an integer number (2374000066536).

Almost surely, 2^{8704666910621} is an apocalyptic number.

It is an amenable number.

8704666910621 is a deficient number, since it is larger than the sum of its proper divisors (791333355523).

8704666910621 is a wasteful number, since it uses less digits than its factorization.

8704666910621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791333355522.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 8704666910621 in words is "eight trillion, seven hundred four billion, six hundred sixty-six million, nine hundred ten thousand, six hundred twenty-one".