2865787013 has 2 divisors, whose sum is σ = 2865787014. Its totient is φ = 2865787012.

The previous prime is 2865786983. The next prime is 2865787027. The reversal of 2865787013 is 3107875682.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2458473889 + 407313124 = 49583^2 + 20182^2 .

It is a cyclic number.

It is not a de Polignac number, because 2865787013 - 2¹² = 2865782917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2865787213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432893506 + 1432893507.

It is an arithmetic number, because the mean of its divisors is an integer number (1432893507).

Almost surely, 2^2865787013 is an apocalyptic number.

It is an amenable number.

2865787013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865787013 is an equidigital number, since it uses as much as digits as its factorization.

2865787013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 2865787013 is about 53533.0459903040. The cubic root of 2865787013 is about 1420.4129944993.

The spelling of 2865787013 in words is "two billion, eight hundred sixty-five million, seven hundred eighty-seven thousand, thirteen".