19478543000 has 64 divisors (see below), whose sum is σ = 52091208000. Its totient is φ = 6678355200.

The previous prime is 19478542973. The next prime is 19478543011. The reversal of 19478543000 is 34587491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384325 + ... + 1398324.

It is an arithmetic number, because the mean of its divisors is an integer number (813925125).

Almost surely, 2^19478543000 is an apocalyptic number.

19478543000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19478543000 is an abundant number, since it is smaller than the sum of its proper divisors (32612665000).

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

19478543000 is a wasteful number, since it uses less digits than its factorization.

19478543000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782677 (or 2782663 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 19478543000 in words is "nineteen billion, four hundred seventy-eight million, five hundred forty-three thousand".