19230533494 has 8 divisors (see below), whose sum is σ = 28908921528. Its totient is φ = 9594226320.

The previous prime is 19230533471. The next prime is 19230533533. The reversal of 19230533494 is 49433503291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19230533494.

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, 10519072 + ... + 10520899.

It is an arithmetic number, because the mean of its divisors is an integer number (3613615191).

Almost surely, 2^19230533494 is an apocalyptic number.

19230533494 is a deficient number, since it is larger than the sum of its proper divisors (9678388034).

19230533494 is a wasteful number, since it uses less digits than its factorization.

19230533494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21040430.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 19230533494 in words is "nineteen billion, two hundred thirty million, five hundred thirty-three thousand, four hundred ninety-four".