19057205212 has 12 divisors (see below), whose sum is σ = 33367946976. Its totient is φ = 9523506080.

The previous prime is 19057205191. The next prime is 19057205213. The reversal of 19057205212 is 21250275091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19057205213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265713 + ... + 1280680.

It is an arithmetic number, because the mean of its divisors is an integer number (2780662248).

Almost surely, 2^19057205212 is an apocalyptic number.

It is an amenable number.

19057205212 is a deficient number, since it is larger than the sum of its proper divisors (14310741764).

19057205212 is a wasteful number, since it uses less digits than its factorization.

19057205212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548268 (or 2548266 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 19057205212 in words is "nineteen billion, fifty-seven million, two hundred five thousand, two hundred twelve".