8078280305 has 8 divisors (see below), whose sum is σ = 9695242944. Its totient is φ = 6461753200.

The previous prime is 8078280289. The next prime is 8078280311. The reversal of 8078280305 is 5030828708.

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

It is not a de Polignac number, because 8078280305 - 2⁴ = 8078280289 is a prime.

It is a super-2 number, since 2×8078280305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66581 + ... + 143490.

It is an arithmetic number, because the mean of its divisors is an integer number (1211905368).

Almost surely, 2^8078280305 is an apocalyptic number.

It is an amenable number.

8078280305 is a deficient number, since it is larger than the sum of its proper divisors (1616962639).

8078280305 is a wasteful number, since it uses less digits than its factorization.

8078280305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217767.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 8078280305 is about 89879.2540300597. The cubic root of 8078280305 is about 2006.5021965613.

The spelling of 8078280305 in words is "eight billion, seventy-eight million, two hundred eighty thousand, three hundred five".