8065978307 has 32 divisors (see below), whose sum is σ = 8877772800. Its totient is φ = 7304596992.

The previous prime is 8065978303. The next prime is 8065978343. The reversal of 8065978307 is 7038795608.

It is a cyclic number.

It is not a de Polignac number, because 8065978307 - 2² = 8065978303 is a prime.

It is a super-3 number, since 3×8065978307³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8065978303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7762694 + ... + 7763732.

It is an arithmetic number, because the mean of its divisors is an integer number (277430400).

Almost surely, 2^8065978307 is an apocalyptic number.

8065978307 is a deficient number, since it is larger than the sum of its proper divisors (811794493).

8065978307 is a wasteful number, since it uses less digits than its factorization.

8065978307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 8065978307 is about 89810.7917067877. The cubic root of 8065978307 is about 2005.4831460671.

The spelling of 8065978307 in words is "eight billion, sixty-five million, nine hundred seventy-eight thousand, three hundred seven".