8042663539 has 4 divisors (see below), whose sum is σ = 8465961640. Its totient is φ = 7619365440.

The previous prime is 8042663509. The next prime is 8042663567. The reversal of 8042663539 is 9353662408.

It is a happy number.

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 8042663539 - 2¹¹ = 8042661491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8042663509) 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, 211649022 + ... + 211649059.

It is an arithmetic number, because the mean of its divisors is an integer number (2116490410).

Almost surely, 2^8042663539 is an apocalyptic number.

8042663539 is a deficient number, since it is larger than the sum of its proper divisors (423298101).

8042663539 is a wasteful number, since it uses less digits than its factorization.

8042663539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423298100.

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 8042663539 is about 89680.8984065169. The cubic root of 8042663539 is about 2003.5489935141.

The spelling of 8042663539 in words is "eight billion, forty-two million, six hundred sixty-three thousand, five hundred thirty-nine".