19193433412 has 12 divisors (see below), whose sum is σ = 33759009900. Its totient is φ = 9548002016.

The previous prime is 19193433407. The next prime is 19193433437. The reversal of 19193433412 is 21433439191.

It can be written as a sum of positive squares in 2 ways, for example, as 17876759616 + 1316673796 = 133704^2 + 36286^2 .

It is a super-2 number, since 2×19193433412² (a number of 21 digits) contains 22 as substring.

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, 12177787 + ... + 12179362.

It is an arithmetic number, because the mean of its divisors is an integer number (2813250825).

Almost surely, 2^19193433412 is an apocalyptic number.

It is an amenable number.

19193433412 is a deficient number, since it is larger than the sum of its proper divisors (14565576488).

19193433412 is a wasteful number, since it uses less digits than its factorization.

19193433412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24357350 (or 24357348 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The spelling of 19193433412 in words is "nineteen billion, one hundred ninety-three million, four hundred thirty-three thousand, four hundred twelve".