2865080321 has 2 divisors, whose sum is σ = 2865080322. Its totient is φ = 2865080320.

The previous prime is 2865080303. The next prime is 2865080341. The reversal of 2865080321 is 1230805682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2858506225 + 6574096 = 53465^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2865080321 - 2¹⁰ = 2865079297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2865080341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432540160 + 1432540161.

It is an arithmetic number, because the mean of its divisors is an integer number (1432540161).

Almost surely, 2^2865080321 is an apocalyptic number.

It is an amenable number.

2865080321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865080321 is an equidigital number, since it uses as much as digits as its factorization.

2865080321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2865080321 is about 53526.4450622307. The cubic root of 2865080321 is about 1420.2962287828.

The spelling of 2865080321 in words is "two billion, eight hundred sixty-five million, eighty thousand, three hundred twenty-one".