19292997312 has 280 divisors, whose sum is σ = 59386939392. Its totient is φ = 6186585600.

The previous prime is 19292997299. The next prime is 19292997313. The reversal of 19292997312 is 21379929291.

19292997312 is a `hidden beast` number, since 19 + 29 + 299 + 7 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (19292997313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43550563 + ... + 43551005.

Almost surely, 2^19292997312 is an apocalyptic number.

19292997312 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 19292997312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29693469696).

19292997312 is an abundant number, since it is smaller than the sum of its proper divisors (40093942080).

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

19292997312 is a wasteful number, since it uses less digits than its factorization.

19292997312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 750 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The spelling of 19292997312 in words is "nineteen billion, two hundred ninety-two million, nine hundred ninety-seven thousand, three hundred twelve".