9878105808 has 60 divisors (see below), whose sum is σ = 28233187008. Its totient is φ = 3222642240.

The previous prime is 9878105807. The next prime is 9878105837. The reversal of 9878105808 is 8085018789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878105801) 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, 722998 + ... + 736533.

Almost surely, 2^9878105808 is an apocalyptic number.

It is an amenable number.

9878105808 is an abundant number, since it is smaller than the sum of its proper divisors (18355081200).

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

9878105808 is a wasteful number, since it uses less digits than its factorization.

9878105808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459592 (or 1459583 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 54.

The square root of 9878105808 is about 99388.6603592180. The cubic root of 9878105808 is about 2145.6451102161.

The spelling of 9878105808 in words is "nine billion, eight hundred seventy-eight million, one hundred five thousand, eight hundred eight".