8312813653 has 4 divisors (see below), whose sum is σ = 8313014880. Its totient is φ = 8312612428.

The previous prime is 8312813651. The next prime is 8312813659. The reversal of 8312813653 is 3563182138.

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 a cyclic number.

It is not a de Polignac number, because 8312813653 - 2¹ = 8312813651 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 (8312813651) 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, 13513 + ... + 129646.

It is an arithmetic number, because the mean of its divisors is an integer number (2078253720).

Almost surely, 2^8312813653 is an apocalyptic number.

It is an amenable number.

8312813653 is a deficient number, since it is larger than the sum of its proper divisors (201227).

8312813653 is a wasteful number, since it uses less digits than its factorization.

8312813653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201226.

The product of its digits is 103680, while the sum is 40.

The square root of 8312813653 is about 91174.6327275301. The cubic root of 8312813653 is about 2025.7352329344.

The spelling of 8312813653 in words is "eight billion, three hundred twelve million, eight hundred thirteen thousand, six hundred fifty-three".