8381048409 has 24 divisors (see below), whose sum is σ = 12755957760. Its totient is φ = 5287959072.

The previous prime is 8381048317. The next prime is 8381048437. The reversal of 8381048409 is 9048401838.

It is not a de Polignac number, because 8381048409 - 2⁸ = 8381048153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8381046409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149032 + ... + 197414.

It is an arithmetic number, because the mean of its divisors is an integer number (531498240).

Almost surely, 2^8381048409 is an apocalyptic number.

It is an amenable number.

8381048409 is a deficient number, since it is larger than the sum of its proper divisors (4374909351).

8381048409 is a wasteful number, since it uses less digits than its factorization.

8381048409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49421 (or 49418 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 8381048409 is about 91548.0661128350. The cubic root of 8381048409 is about 2031.2628062953.

The spelling of 8381048409 in words is "eight billion, three hundred eighty-one million, forty-eight thousand, four hundred nine".