19404088704 has 1024 divisors, whose sum is σ = 78962688000. Its totient is φ = 4528742400.

The previous prime is 19404088699. The next prime is 19404088723. The reversal of 19404088704 is 40788040491.

It is a self number, because there is not a number n which added to its sum of digits gives 19404088704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 245621337 + ... + 245621415.

It is an arithmetic number, because the mean of its divisors is an integer number (77112000).

Almost surely, 2^19404088704 is an apocalyptic number.

19404088704 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 19404088704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39481344000).

19404088704 is an abundant number, since it is smaller than the sum of its proper divisors (59558599296).

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

19404088704 is a wasteful number, since it uses less digits than its factorization.

19404088704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 19404088704 in words is "nineteen billion, four hundred four million, eighty-eight thousand, seven hundred four".