19714228146 has 64 divisors (see below), whose sum is σ = 44859830400. Its totient is φ = 6414061248.

The previous prime is 19714228129. The next prime is 19714228147. The reversal of 19714228146 is 64182241791.

19714228146 is a `hidden beast` number, since 19 + 71 + 422 + 8 + 146 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19714228147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5359660 + ... + 5363336.

It is an arithmetic number, because the mean of its divisors is an integer number (700934850).

Almost surely, 2^19714228146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19714228146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22429915200).

19714228146 is an abundant number, since it is smaller than the sum of its proper divisors (25145602254).

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

19714228146 is a wasteful number, since it uses less digits than its factorization.

19714228146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040 (or 6034 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 19714228146 in words is "nineteen billion, seven hundred fourteen million, two hundred twenty-eight thousand, one hundred forty-six".