9878397030 has 24 divisors (see below), whose sum is σ = 25683832512. Its totient is φ = 2634239184.

The previous prime is 9878397017. The next prime is 9878397037. The reversal of 9878397030 is 307938789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878397037) 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, 54879894 + ... + 54880073.

It is an arithmetic number, because the mean of its divisors is an integer number (1070159688).

Almost surely, 2^9878397030 is an apocalyptic number.

9878397030 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9878397030 is an abundant number, since it is smaller than the sum of its proper divisors (15805435482).

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

9878397030 is a wasteful number, since it uses less digits than its factorization.

9878397030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109759980 (or 109759977 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 9878397030 is about 99390.1254149526. The cubic root of 9878397030 is about 2145.6661956661. Note that the first 3 decimals are identical.

The spelling of 9878397030 in words is "nine billion, eight hundred seventy-eight million, three hundred ninety-seven thousand, thirty".