5761872649 has 9 divisors (see below), whose sum is σ = 6240256263. Its totient is φ = 5317740792.

The previous prime is 5761872637. The next prime is 5761872667. The reversal of 5761872649 is 9462781675.

The square root of 5761872649 is 75907.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 852348025 + 4909524624 = 29195^2 + 70068^2 .

It is not a de Polignac number, because 5761872649 - 2⁵ = 5761872617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5761872649.

It is not an unprimeable number, because it can be changed into a prime (5761872049) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 983872 + ... + 989710.

It is an arithmetic number, because the mean of its divisors is an integer number (693361807).

Almost surely, 2^5761872649 is an apocalyptic number.

5761872649 is the 75907-th square number.

5761872649 is the 37954-th centered octagonal number.

It is an amenable number.

5761872649 is a deficient number, since it is larger than the sum of its proper divisors (478383614).

5761872649 is an frugal number, since it uses more digits than its factorization.

5761872649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11704 (or 5852 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The cubic root of 5761872649 is about 1792.7561391049.

The spelling of 5761872649 in words is "five billion, seven hundred sixty-one million, eight hundred seventy-two thousand, six hundred forty-nine".