19412535012 has 96 divisors (see below), whose sum is σ = 49474188288. Its totient is φ = 5888429184.

The previous prime is 19412534993. The next prime is 19412535013. The reversal of 19412535012 is 21053521491.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19412535013) 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, 7288393 + ... + 7291055.

It is an arithmetic number, because the mean of its divisors is an integer number (515356128).

Almost surely, 2^19412535012 is an apocalyptic number.

19412535012 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 19412535012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24737094144).

19412535012 is an abundant number, since it is smaller than the sum of its proper divisors (30061653276).

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

19412535012 is a wasteful number, since it uses less digits than its factorization.

19412535012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 19412535012 in words is "nineteen billion, four hundred twelve million, five hundred thirty-five thousand, twelve".