8042909505 has 8 divisors (see below), whose sum is σ = 12868655232. Its totient is φ = 4289551728.

The previous prime is 8042909473. The next prime is 8042909507. The reversal of 8042909505 is 5059092408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8042909505 - 2⁵ = 8042909473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8042909507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268096969 + ... + 268096998.

It is an arithmetic number, because the mean of its divisors is an integer number (1608581904).

Almost surely, 2^8042909505 is an apocalyptic number.

It is an amenable number.

8042909505 is a deficient number, since it is larger than the sum of its proper divisors (4825745727).

8042909505 is a wasteful number, since it uses less digits than its factorization.

8042909505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536193975.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 8042909505 is about 89682.2697359963. The cubic root of 8042909505 is about 2003.5694179214.

The spelling of 8042909505 in words is "eight billion, forty-two million, nine hundred nine thousand, five hundred five".