19398468434 has 8 divisors (see below), whose sum is σ = 29098353648. Its totient is φ = 9699017220.

The previous prime is 19398468403. The next prime is 19398468469. The reversal of 19398468434 is 43486489391.

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

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, 48929 + ... + 202955.

It is an arithmetic number, because the mean of its divisors is an integer number (3637294206).

Almost surely, 2^19398468434 is an apocalyptic number.

19398468434 is a deficient number, since it is larger than the sum of its proper divisors (9699885214).

19398468434 is a wasteful number, since it uses less digits than its factorization.

19398468434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217000.

The product of its digits is 17915904, while the sum is 59.

The spelling of 19398468434 in words is "nineteen billion, three hundred ninety-eight million, four hundred sixty-eight thousand, four hundred thirty-four".