19479225414 has 48 divisors (see below), whose sum is σ = 42968718576. Its totient is φ = 5882585280.

The previous prime is 19479225373. The next prime is 19479225427. The reversal of 19479225414 is 41452297491.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 166932 + ... + 258504.

It is an arithmetic number, because the mean of its divisors is an integer number (895181637).

Almost surely, 2^19479225414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19479225414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21484359288).

19479225414 is an abundant number, since it is smaller than the sum of its proper divisors (23489493162).

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

19479225414 is a wasteful number, since it uses less digits than its factorization.

19479225414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91893 (or 91882 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 19479225414 in words is "nineteen billion, four hundred seventy-nine million, two hundred twenty-five thousand, four hundred fourteen".