19340085312 has 112 divisors (see below), whose sum is σ = 56892870720. Its totient is φ = 6442546176.

The previous prime is 19340085311. The next prime is 19340085341. The reversal of 19340085312 is 21358004391.

19340085312 is a `hidden beast` number, since 193 + 400 + 8 + 53 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (19340085311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3914908 + ... + 3919844.

It is an arithmetic number, because the mean of its divisors is an integer number (507972060).

Almost surely, 2^19340085312 is an apocalyptic number.

19340085312 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 19340085312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28446435360).

19340085312 is an abundant number, since it is smaller than the sum of its proper divisors (37552785408).

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

19340085312 is a wasteful number, since it uses less digits than its factorization.

19340085312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225 (or 7209 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 19340085312 in words is "nineteen billion, three hundred forty million, eighty-five thousand, three hundred twelve".