8641348685 has 4 divisors (see below), whose sum is σ = 10369618428. Its totient is φ = 6913078944.

The previous prime is 8641348669. The next prime is 8641348691. The reversal of 8641348685 is 5868431468.

It is a happy number.

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 3782004004 + 4859344681 = 61498^2 + 69709^2 .

It is a cyclic number.

It is not a de Polignac number, because 8641348685 - 2⁴ = 8641348669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 864134864 + ... + 864134873.

It is an arithmetic number, because the mean of its divisors is an integer number (2592404607).

Almost surely, 2^8641348685 is an apocalyptic number.

It is an amenable number.

8641348685 is a deficient number, since it is larger than the sum of its proper divisors (1728269743).

8641348685 is a wasteful number, since it uses less digits than its factorization.

8641348685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728269742.

The product of its digits is 4423680, while the sum is 53.

The square root of 8641348685 is about 92958.8547960871. The cubic root of 8641348685 is about 2052.0778998510.

The spelling of 8641348685 in words is "eight billion, six hundred forty-one million, three hundred forty-eight thousand, six hundred eighty-five".