19963049204 has 96 divisors (see below), whose sum is σ = 42830726400. Its totient is φ = 7947159552.

The previous prime is 19963049179. The next prime is 19963049209. The reversal of 19963049204 is 40294036991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19963049209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12269039 + ... + 12270665.

It is an arithmetic number, because the mean of its divisors is an integer number (446153400).

Almost surely, 2^19963049204 is an apocalyptic number.

19963049204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19963049204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21415363200).

19963049204 is an abundant number, since it is smaller than the sum of its proper divisors (22867677196).

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

19963049204 is a wasteful number, since it uses less digits than its factorization.

19963049204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 19963049204 in words is "nineteen billion, nine hundred sixty-three million, forty-nine thousand, two hundred four".