19013933612 has 24 divisors (see below), whose sum is σ = 35505481200. Its totient is φ = 8883219456.

The previous prime is 19013933597. The next prime is 19013933621. The reversal of 19013933612 is 21633931091.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708037 + ... + 1719132.

It is an arithmetic number, because the mean of its divisors is an integer number (1479395050).

Almost surely, 2^19013933612 is an apocalyptic number.

It is an amenable number.

19013933612 is a deficient number, since it is larger than the sum of its proper divisors (16491547588).

19013933612 is a wasteful number, since it uses less digits than its factorization.

19013933612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427265 (or 3427263 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 38.

The spelling of 19013933612 in words is "nineteen billion, thirteen million, nine hundred thirty-three thousand, six hundred twelve".