19712422612 has 6 divisors (see below), whose sum is σ = 34496739578. Its totient is φ = 9856211304.

The previous prime is 19712422589. The next prime is 19712422627. The reversal of 19712422612 is 21622421791.

It can be written as a sum of positive squares in only one way, i.e., 14235830596 + 5476592016 = 119314^2 + 74004^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2464052823 + ... + 2464052830.

Almost surely, 2^19712422612 is an apocalyptic number.

It is an amenable number.

19712422612 is a deficient number, since it is larger than the sum of its proper divisors (14784316966).

19712422612 is a wasteful number, since it uses less digits than its factorization.

19712422612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928105657 (or 4928105655 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The spelling of 19712422612 in words is "nineteen billion, seven hundred twelve million, four hundred twenty-two thousand, six hundred twelve".