9878422148 has 36 divisors (see below), whose sum is σ = 20125395612. Its totient is φ = 4230293760.

The previous prime is 9878422139. The next prime is 9878422159. The reversal of 9878422148 is 8412248789.

It can be written as a sum of positive squares in 2 ways, for example, as 8288645764 + 1589776384 = 91042^2 + 39872^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9878422148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239840 + ... + 277992.

It is an arithmetic number, because the mean of its divisors is an integer number (559038767).

Almost surely, 2^9878422148 is an apocalyptic number.

9878422148 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

9878422148 is an abundant number, since it is smaller than the sum of its proper divisors (10246973464).

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

9878422148 is a wasteful number, since it uses less digits than its factorization.

9878422148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39492 (or 39483 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The square root of 9878422148 is about 99390.2517755137. The cubic root of 9878422148 is about 2145.6680142742.

The spelling of 9878422148 in words is "nine billion, eight hundred seventy-eight million, four hundred twenty-two thousand, one hundred forty-eight".