8381884961 has 4 divisors (see below), whose sum is σ = 8386080000. Its totient is φ = 8377689924.

The previous prime is 8381884957. The next prime is 8381885023. The reversal of 8381884961 is 1694881838.

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.

It is a cyclic number.

It is not a de Polignac number, because 8381884961 - 2² = 8381884957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8381884897 and 8381884906.

It is not an unprimeable number, because it can be changed into a prime (8381884921) 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, 2094521 + ... + 2098518.

It is an arithmetic number, because the mean of its divisors is an integer number (2096520000).

Almost surely, 2^8381884961 is an apocalyptic number.

It is an amenable number.

8381884961 is a deficient number, since it is larger than the sum of its proper divisors (4195039).

8381884961 is a wasteful number, since it uses less digits than its factorization.

8381884961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195038.

The product of its digits is 2654208, while the sum is 56.

The square root of 8381884961 is about 91552.6349211206. The cubic root of 8381884961 is about 2031.3303873562.

The spelling of 8381884961 in words is "eight billion, three hundred eighty-one million, eight hundred eighty-four thousand, nine hundred sixty-one".