19349406912 has 224 divisors, whose sum is σ = 58733740800. Its totient is φ = 5567385600.

The previous prime is 19349406911. The next prime is 19349406929. The reversal of 19349406912 is 21960494391.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (19349406911) 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, 3733539 + ... + 3738717.

It is an arithmetic number, because the mean of its divisors is an integer number (262204200).

Almost surely, 2^19349406912 is an apocalyptic number.

19349406912 is a gapful number since it is divisible by the number (12) 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 19349406912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29366870400).

19349406912 is an abundant number, since it is smaller than the sum of its proper divisors (39384333888).

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

19349406912 is a wasteful number, since it uses less digits than its factorization.

19349406912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295 (or 5285 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 19349406912 in words is "nineteen billion, three hundred forty-nine million, four hundred six thousand, nine hundred twelve".