2148478500 has 144 divisors (see below), whose sum is σ = 7278066432. Its totient is φ = 491064000.

The previous prime is 2148478483. The next prime is 2148478583. The reversal of 2148478500 is 58748412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58885 + ... + 88115.

It is an arithmetic number, because the mean of its divisors is an integer number (50542128).

Almost surely, 2^2148478500 is an apocalyptic number.

2148478500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2148478500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3639033216).

2148478500 is an abundant number, since it is smaller than the sum of its proper divisors (5129587932).

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

2148478500 is a wasteful number, since it uses less digits than its factorization.

2148478500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29267 (or 29248 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2148478500 is about 46351.6828173476. The cubic root of 2148478500 is about 1290.3583524592.

The spelling of 2148478500 in words is "two billion, one hundred forty-eight million, four hundred seventy-eight thousand, five hundred".