3880065009 has 4 divisors (see below), whose sum is σ = 5173420016. Its totient is φ = 2586710004.

The previous prime is 3880064999. The next prime is 3880065019. The reversal of 3880065009 is 9005600883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9005600883 = 3 ⋅3001866961.

It is an interprime number because it is at equal distance from previous prime (3880064999) and next prime (3880065019).

It is not a de Polignac number, because 3880065009 - 2⁹ = 3880064497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3880065019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646677499 + ... + 646677504.

It is an arithmetic number, because the mean of its divisors is an integer number (1293355004).

Almost surely, 2^3880065009 is an apocalyptic number.

It is an amenable number.

3880065009 is a deficient number, since it is larger than the sum of its proper divisors (1293355007).

3880065009 is a wasteful number, since it uses less digits than its factorization.

3880065009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293355006.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 3880065009 is about 62290.1678357026. The cubic root of 3880065009 is about 1571.3743775435.

The spelling of 3880065009 in words is "three billion, eight hundred eighty million, sixty-five thousand, nine".