8080715891 has 2 divisors, whose sum is σ = 8080715892. Its totient is φ = 8080715890.

The previous prime is 8080715869. The next prime is 8080715911. The reversal of 8080715891 is 1985170808.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8080715891 is a prime.

It is a super-2 number, since 2×8080715891² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8080715821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4040357945 + 4040357946.

It is an arithmetic number, because the mean of its divisors is an integer number (4040357946).

Almost surely, 2^8080715891 is an apocalyptic number.

8080715891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8080715891 is an equidigital number, since it uses as much as digits as its factorization.

8080715891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 47.

The square root of 8080715891 is about 89892.8022202000. The cubic root of 8080715891 is about 2006.7038284852.

The spelling of 8080715891 in words is "eight billion, eighty million, seven hundred fifteen thousand, eight hundred ninety-one".