19494968476 has 12 divisors (see below), whose sum is σ = 34948297440. Its totient is φ = 9509740640.

The previous prime is 19494968473. The next prime is 19494968489. The reversal of 19494968476 is 67486949491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19494968473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59435716 + ... + 59436043.

It is an arithmetic number, because the mean of its divisors is an integer number (2912358120).

Almost surely, 2^19494968476 is an apocalyptic number.

It is an amenable number.

19494968476 is a deficient number, since it is larger than the sum of its proper divisors (15453328964).

19494968476 is a wasteful number, since it uses less digits than its factorization.

19494968476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118871804 (or 118871802 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 67.

The spelling of 19494968476 in words is "nineteen billion, four hundred ninety-four million, nine hundred sixty-eight thousand, four hundred seventy-six".