2881742609 has 4 divisors (see below), whose sum is σ = 2974702080. Its totient is φ = 2788783140.

The previous prime is 2881742593. The next prime is 2881742621. The reversal of 2881742609 is 9062471882.

It is a happy number.

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: 9062471882 = 2 ⋅4531235941.

It is a cyclic number.

It is not a de Polignac number, because 2881742609 - 2⁴ = 2881742593 is a prime.

It is a super-2 number, since 2×2881742609² = 16608880929052253762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2881742629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46479689 + ... + 46479750.

It is an arithmetic number, because the mean of its divisors is an integer number (743675520).

Almost surely, 2^2881742609 is an apocalyptic number.

It is an amenable number.

2881742609 is a deficient number, since it is larger than the sum of its proper divisors (92959471).

2881742609 is an equidigital number, since it uses as much as digits as its factorization.

2881742609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92959470.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 2881742609 is about 53681.8648055374. The cubic root of 2881742609 is about 1423.0442210816.

The spelling of 2881742609 in words is "two billion, eight hundred eighty-one million, seven hundred forty-two thousand, six hundred nine".