2871730649 has 8 divisors (see below), whose sum is σ = 2894261760. Its totient is φ = 2849278000.

The previous prime is 2871730643. The next prime is 2871730669. The reversal of 2871730649 is 9460371782.

2871730649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2871730649 is a prime.

It is a super-2 number, since 2×2871730649² = 16493673840811922402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2871730643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54974 + ... + 93624.

It is an arithmetic number, because the mean of its divisors is an integer number (361782720).

Almost surely, 2^2871730649 is an apocalyptic number.

It is an amenable number.

2871730649 is a deficient number, since it is larger than the sum of its proper divisors (22531111).

2871730649 is a wasteful number, since it uses less digits than its factorization.

2871730649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39231.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 2871730649 is about 53588.5309464628. The cubic root of 2871730649 is about 1421.3942942223.

The spelling of 2871730649 in words is "two billion, eight hundred seventy-one million, seven hundred thirty thousand, six hundred forty-nine".