19689704274 has 64 divisors (see below), whose sum is σ = 40209039360. Its totient is φ = 6426846720.

The previous prime is 19689704273. The next prime is 19689704297. The reversal of 19689704274 is 47240798691.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19689704273) 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, 27384487 + ... + 27385205.

It is an arithmetic number, because the mean of its divisors is an integer number (628266240).

Almost surely, 2^19689704274 is an apocalyptic number.

19689704274 is an abundant number, since it is smaller than the sum of its proper divisors (20519335086).

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

19689704274 is a wasteful number, since it uses less digits than its factorization.

19689704274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 19689704274 in words is "nineteen billion, six hundred eighty-nine million, seven hundred four thousand, two hundred seventy-four".