2865945013 has 2 divisors, whose sum is σ = 2865945014. Its totient is φ = 2865945012.

The previous prime is 2865945007. The next prime is 2865945023. The reversal of 2865945013 is 3105495682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1657548369 + 1208396644 = 40713^2 + 34762^2 .

It is a cyclic number.

It is not a de Polignac number, because 2865945013 - 2²⁵ = 2832390581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2865945023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432972506 + 1432972507.

It is an arithmetic number, because the mean of its divisors is an integer number (1432972507).

Almost surely, 2^2865945013 is an apocalyptic number.

It is an amenable number.

2865945013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865945013 is an equidigital number, since it uses as much as digits as its factorization.

2865945013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 2865945013 is about 53534.5216939500. The cubic root of 2865945013 is about 1420.4390979894.

The spelling of 2865945013 in words is "two billion, eight hundred sixty-five million, nine hundred forty-five thousand, thirteen".