8015518897 has 2 divisors, whose sum is σ = 8015518898. Its totient is φ = 8015518896.

The previous prime is 8015518891. The next prime is 8015518933. The reversal of 8015518897 is 7988155108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6678812176 + 1336706721 = 81724^2 + 36561^2 .

It is a cyclic number.

It is not a de Polignac number, because 8015518897 - 2¹¹ = 8015516849 is a prime.

It is not a weakly prime, because it can be changed into another prime (8015518891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4007759448 + 4007759449.

It is an arithmetic number, because the mean of its divisors is an integer number (4007759449).

Almost surely, 2^8015518897 is an apocalyptic number.

It is an amenable number.

8015518897 is a deficient number, since it is larger than the sum of its proper divisors (1).

8015518897 is an equidigital number, since it uses as much as digits as its factorization.

8015518897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 52.

The square root of 8015518897 is about 89529.4303399726. The cubic root of 8015518897 is about 2001.2924060800.

The spelling of 8015518897 in words is "eight billion, fifteen million, five hundred eighteen thousand, eight hundred ninety-seven".