19712634794 has 8 divisors (see below), whose sum is σ = 30854558880. Its totient is φ = 9427781836.

The previous prime is 19712634793. The next prime is 19712634803. The reversal of 19712634794 is 49743621791.

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

It is not an unprimeable number, because it can be changed into a prime (19712634793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214267724 + ... + 214267815.

It is an arithmetic number, because the mean of its divisors is an integer number (3856819860).

Almost surely, 2^19712634794 is an apocalyptic number.

19712634794 is a deficient number, since it is larger than the sum of its proper divisors (11141924086).

19712634794 is a wasteful number, since it uses less digits than its factorization.

19712634794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428535564.

The product of its digits is 2286144, while the sum is 53.

The spelling of 19712634794 in words is "nineteen billion, seven hundred twelve million, six hundred thirty-four thousand, seven hundred ninety-four".