8008447878 has 24 divisors (see below), whose sum is σ = 18106057008. Its totient is φ = 2553418032.

The previous prime is 8008447871. The next prime is 8008447927. The reversal of 8008447878 is 8787448008.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8008447871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9671625 + ... + 9672452.

It is an arithmetic number, because the mean of its divisors is an integer number (754419042).

Almost surely, 2^8008447878 is an apocalyptic number.

8008447878 is an abundant number, since it is smaller than the sum of its proper divisors (10097609130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8008447878 is a wasteful number, since it uses less digits than its factorization.

8008447878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19344108 (or 19344105 counting only the distinct ones).

The product of its (nonzero) digits is 3211264, while the sum is 54.

The square root of 8008447878 is about 89489.9317130145. The cubic root of 8008447878 is about 2000.7037421778.

The spelling of 8008447878 in words is "eight billion, eight million, four hundred forty-seven thousand, eight hundred seventy-eight".