8978331841 has 4 divisors (see below), whose sum is σ = 8980907184. Its totient is φ = 8975756500.

The previous prime is 8978331799. The next prime is 8978331863. The reversal of 8978331841 is 1481338798.

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 a de Polignac number, because none of the positive numbers 2^k-8978331841 is a prime.

It is a super-2 number, since 2×8978331841² (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 (8978331881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282435 + ... + 1289416.

It is an arithmetic number, because the mean of its divisors is an integer number (2245226796).

Almost surely, 2^8978331841 is an apocalyptic number.

It is an amenable number.

8978331841 is a deficient number, since it is larger than the sum of its proper divisors (2575343).

8978331841 is a wasteful number, since it uses less digits than its factorization.

8978331841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575342.

The product of its digits is 1161216, while the sum is 52.

The square root of 8978331841 is about 94754.0597599913. The cubic root of 8978331841 is about 2078.4131635512.

The spelling of 8978331841 in words is "eight billion, nine hundred seventy-eight million, three hundred thirty-one thousand, eight hundred forty-one".