19478248900 has 36 divisors (see below), whose sum is σ = 46110330000. Its totient is φ = 7082999200.

The previous prime is 19478248891. The next prime is 19478248969. The reversal of 19478248900 is 984287491.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8852650 + ... + 8854849.

It is an arithmetic number, because the mean of its divisors is an integer number (1280842500).

Almost surely, 2^19478248900 is an apocalyptic number.

19478248900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19478248900 is an abundant number, since it is smaller than the sum of its proper divisors (26632081100).

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

19478248900 is a wasteful number, since it uses less digits than its factorization.

19478248900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17707524 (or 17707517 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 19478248900 in words is "nineteen billion, four hundred seventy-eight million, two hundred forty-eight thousand, nine hundred".