19794030912 has 70 divisors (see below), whose sum is σ = 58675723898. Its totient is φ = 6598008576.

The previous prime is 19794030821. The next prime is 19794030913. The reversal of 19794030912 is 21903049791.

It can be written as a sum of positive squares in only one way, i.e., 14946529536 + 4847501376 = 122256^2 + 69624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19794030913) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1903963 + ... + 1914330.

Almost surely, 2^19794030912 is an apocalyptic number.

19794030912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19794030912 is an abundant number, since it is smaller than the sum of its proper divisors (38881692986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19794030912 is an equidigital number, since it uses as much as digits as its factorization.

19794030912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818317 (or 3818298 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 19794030912 in words is "nineteen billion, seven hundred ninety-four million, thirty thousand, nine hundred twelve".