8543909013 has 16 divisors (see below), whose sum is σ = 11555723520. Its totient is φ = 5614262784.

The previous prime is 8543909009. The next prime is 8543909021. The reversal of 8543909013 is 3109093458.

It is not a de Polignac number, because 8543909013 - 2² = 8543909009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8543907013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110145 + ... + 170937.

It is an arithmetic number, because the mean of its divisors is an integer number (722232720).

Almost surely, 2^8543909013 is an apocalyptic number.

It is an amenable number.

8543909013 is a deficient number, since it is larger than the sum of its proper divisors (3011814507).

8543909013 is a wasteful number, since it uses less digits than its factorization.

8543909013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61468.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 8543909013 is about 92433.2678909493. The cubic root of 8543909013 is about 2044.3356631976.

The spelling of 8543909013 in words is "eight billion, five hundred forty-three million, nine hundred nine thousand, thirteen".