8065827731 has 16 divisors (see below), whose sum is σ = 9151326240. Its totient is φ = 7047440640.

The previous prime is 8065827709. The next prime is 8065827733. The reversal of 8065827731 is 1377285608.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8065827731 is a prime.

It is a super-2 number, since 2×8065827731² (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 (8065827733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286151 + ... + 313071.

It is an arithmetic number, because the mean of its divisors is an integer number (571957890).

Almost surely, 2^8065827731 is an apocalyptic number.

8065827731 is a deficient number, since it is larger than the sum of its proper divisors (1085498509).

8065827731 is a wasteful number, since it uses less digits than its factorization.

8065827731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28166.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 8065827731 is about 89809.9534071809. The cubic root of 8065827731 is about 2005.4706665100.

The spelling of 8065827731 in words is "eight billion, sixty-five million, eight hundred twenty-seven thousand, seven hundred thirty-one".