8072851687 has 2 divisors, whose sum is σ = 8072851688. Its totient is φ = 8072851686.

The previous prime is 8072851679. The next prime is 8072851733. The reversal of 8072851687 is 7861582708.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8072851687 - 2³ = 8072851679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8072851487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036425843 + 4036425844.

It is an arithmetic number, because the mean of its divisors is an integer number (4036425844).

Almost surely, 2^8072851687 is an apocalyptic number.

8072851687 is a deficient number, since it is larger than the sum of its proper divisors (1).

8072851687 is an equidigital number, since it uses as much as digits as its factorization.

8072851687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The square root of 8072851687 is about 89849.0494496186. The cubic root of 8072851687 is about 2006.0526382240.

The spelling of 8072851687 in words is "eight billion, seventy-two million, eight hundred fifty-one thousand, six hundred eighty-seven".