2865315587 has 2 divisors, whose sum is σ = 2865315588. Its totient is φ = 2865315586.

The previous prime is 2865315571. The next prime is 2865315601. The reversal of 2865315587 is 7855135682.

It is a happy number.

2865315587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2865315587 - 2⁴ = 2865315571 is a prime.

It is not a weakly prime, because it can be changed into another prime (2865315517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432657793 + 1432657794.

It is an arithmetic number, because the mean of its divisors is an integer number (1432657794).

Almost surely, 2^2865315587 is an apocalyptic number.

2865315587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865315587 is an equidigital number, since it uses as much as digits as its factorization.

2865315587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016000, while the sum is 50.

The square root of 2865315587 is about 53528.6426784764. The cubic root of 2865315587 is about 1420.3351035820.

The spelling of 2865315587 in words is "two billion, eight hundred sixty-five million, three hundred fifteen thousand, five hundred eighty-seven".