8242640611 has 4 divisors (see below), whose sum is σ = 8322666352. Its totient is φ = 8162614872.

The previous prime is 8242640599. The next prime is 8242640633. The reversal of 8242640611 is 1160462428.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8242640611 - 2⁹ = 8242640099 is a prime.

It is a super-2 number, since 2×8242640611² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8242640411) 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, 40012716 + ... + 40012921.

It is an arithmetic number, because the mean of its divisors is an integer number (2080666588).

Almost surely, 2^8242640611 is an apocalyptic number.

8242640611 is a deficient number, since it is larger than the sum of its proper divisors (80025741).

8242640611 is a wasteful number, since it uses less digits than its factorization.

8242640611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80025740.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 8242640611 is about 90788.9894811039. The cubic root of 8242640611 is about 2020.0190021249.

The spelling of 8242640611 in words is "eight billion, two hundred forty-two million, six hundred forty thousand, six hundred eleven".