19258730812 has 6 divisors (see below), whose sum is σ = 33702778928. Its totient is φ = 9629365404.

The previous prime is 19258730671. The next prime is 19258730833. The reversal of 19258730812 is 21803785291.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2407341348 + ... + 2407341355.

Almost surely, 2^19258730812 is an apocalyptic number.

It is an amenable number.

19258730812 is a deficient number, since it is larger than the sum of its proper divisors (14444048116).

19258730812 is a wasteful number, since it uses less digits than its factorization.

19258730812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814682707 (or 4814682705 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 19258730812 in words is "nineteen billion, two hundred fifty-eight million, seven hundred thirty thousand, eight hundred twelve".