19138547214 has 32 divisors (see below), whose sum is σ = 42943031040. Its totient is φ = 6317576856.

The previous prime is 19138547209. The next prime is 19138547237. The reversal of 19138547214 is 41274583191.

19138547214 is a `hidden beast` number, since 1 + 91 + 3 + 8 + 547 + 2 + 14 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19138547214.

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, 1714912 + ... + 1726035.

It is an arithmetic number, because the mean of its divisors is an integer number (1341969720).

Almost surely, 2^19138547214 is an apocalyptic number.

19138547214 is an abundant number, since it is smaller than the sum of its proper divisors (23804483826).

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

19138547214 is a wasteful number, since it uses less digits than its factorization.

19138547214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441061 (or 3441055 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 19138547214 in words is "nineteen billion, one hundred thirty-eight million, five hundred forty-seven thousand, two hundred fourteen".