8049857841 has 21 divisors (see below), whose sum is σ = 12072898729. Its totient is φ = 5364956916.

The previous prime is 8049857831. The next prime is 8049857843. The reversal of 8049857841 is 1487589408.

The square root of 8049857841 is 89721.

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

8049857841 is a `hidden beast` number, since 80 + 498 + 5 + 78 + 4 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-8049857841 is a prime.

It is a super-2 number, since 2×8049857841² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8049857843) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 2420806 + ... + 2424128.

Almost surely, 2^8049857841 is an apocalyptic number.

8049857841 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8049857841 is the 89721-st square number.

8049857841 is the 44861-st centered octagonal number.

It is an amenable number.

8049857841 is a deficient number, since it is larger than the sum of its proper divisors (4023040888).

8049857841 is an frugal number, since it uses more digits than its factorization.

8049857841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664 (or 3326 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The cubic root of 8049857841 is about 2004.1462185792.

The spelling of 8049857841 in words is "eight billion, forty-nine million, eight hundred fifty-seven thousand, eight hundred forty-one".