19708392212 has 12 divisors (see below), whose sum is σ = 34592032020. Its totient is φ = 9824954496.

The previous prime is 19708392203. The next prime is 19708392233. The reversal of 19708392212 is 21229380791.

It can be written as a sum of positive squares in 2 ways, for example, as 5364976516 + 14343415696 = 73246^2 + 119764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7308887 + ... + 7311582.

It is an arithmetic number, because the mean of its divisors is an integer number (2882669335).

Almost surely, 2^19708392212 is an apocalyptic number.

It is an amenable number.

19708392212 is a deficient number, since it is larger than the sum of its proper divisors (14883639808).

19708392212 is a wasteful number, since it uses less digits than its factorization.

19708392212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14620810 (or 14620808 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 19708392212 in words is "nineteen billion, seven hundred eight million, three hundred ninety-two thousand, two hundred twelve".