9878355630 has 96 divisors (see below), whose sum is σ = 30173925600. Its totient is φ = 2210538240.

The previous prime is 9878355577. The next prime is 9878355647. The reversal of 9878355630 is 365538789.

It is a happy number.

9878355630 is a `hidden beast` number, since 9 + 8 + 7 + 83 + 556 + 3 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 370905 + ... + 396644.

It is an arithmetic number, because the mean of its divisors is an integer number (314311725).

Almost surely, 2^9878355630 is an apocalyptic number.

9878355630 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9878355630 is an abundant number, since it is smaller than the sum of its proper divisors (20295569970).

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

9878355630 is a wasteful number, since it uses less digits than its factorization.

9878355630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767586 (or 767583 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The square root of 9878355630 is about 99389.9171445474. The cubic root of 9878355630 is about 2145.6631981925.

The spelling of 9878355630 in words is "nine billion, eight hundred seventy-eight million, three hundred fifty-five thousand, six hundred thirty".