8513042613 has 4 divisors (see below), whose sum is σ = 11350723488. Its totient is φ = 5675361740.

The previous prime is 8513042599. The next prime is 8513042627. The reversal of 8513042613 is 3162403158.

8513042613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (8513042599) and next prime (8513042627).

It is a cyclic number.

It is not a de Polignac number, because 8513042613 - 2⁸ = 8513042357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8513042633) 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, 1418840433 + ... + 1418840438.

It is an arithmetic number, because the mean of its divisors is an integer number (2837680872).

Almost surely, 2^8513042613 is an apocalyptic number.

It is an amenable number.

8513042613 is a deficient number, since it is larger than the sum of its proper divisors (2837680875).

8513042613 is a wasteful number, since it uses less digits than its factorization.

8513042613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837680874.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 8513042613 is about 92266.1509601436. The cubic root of 8513042613 is about 2041.8708498308.

The spelling of 8513042613 in words is "eight billion, five hundred thirteen million, forty-two thousand, six hundred thirteen".