3880428709 has 2 divisors, whose sum is σ = 3880428710. Its totient is φ = 3880428708.

The previous prime is 3880428707. The next prime is 3880428757. The reversal of 3880428709 is 9078240883.

3880428709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3875685025 + 4743684 = 62255^2 + 2178^2 .

It is a cyclic number.

It is not a de Polignac number, because 3880428709 - 2¹ = 3880428707 is a prime.

Together with 3880428707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3880428707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940214354 + 1940214355.

It is an arithmetic number, because the mean of its divisors is an integer number (1940214355).

Almost surely, 2^3880428709 is an apocalyptic number.

It is an amenable number.

3880428709 is a deficient number, since it is larger than the sum of its proper divisors (1).

3880428709 is an equidigital number, since it uses as much as digits as its factorization.

3880428709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 3880428709 is about 62293.0871686418. The cubic root of 3880428709 is about 1571.4234738863.

The spelling of 3880428709 in words is "three billion, eight hundred eighty million, four hundred twenty-eight thousand, seven hundred nine".