19794734462 has 4 divisors (see below), whose sum is σ = 29692101696. Its totient is φ = 9897367230.

The previous prime is 19794734459. The next prime is 19794734501. The reversal of 19794734462 is 26443749791.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 19794734398 and 19794734407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4948683614 + ... + 4948683617.

It is an arithmetic number, because the mean of its divisors is an integer number (7423025424).

Almost surely, 2^19794734462 is an apocalyptic number.

19794734462 is a deficient number, since it is larger than the sum of its proper divisors (9897367234).

19794734462 is an equidigital number, since it uses as much as digits as its factorization.

19794734462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9897367233.

The product of its digits is 9144576, while the sum is 56.

The spelling of 19794734462 in words is "nineteen billion, seven hundred ninety-four million, seven hundred thirty-four thousand, four hundred sixty-two".