19542935412 has 1152 divisors, whose sum is σ = 78196285440. Its totient is φ = 3941498880.

The previous prime is 19542935369. The next prime is 19542935459. The reversal of 19542935412 is 21453924591.

It is a happy number.

19542935412 is a `hidden beast` number, since 1 + 9 + 542 + 93 + 5 + 4 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 267711408 + ... + 267711480.

It is an arithmetic number, because the mean of its divisors is an integer number (67878720).

Almost surely, 2^19542935412 is an apocalyptic number.

19542935412 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 19542935412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39098142720).

19542935412 is an abundant number, since it is smaller than the sum of its proper divisors (58653350028).

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

19542935412 is a wasteful number, since it uses less digits than its factorization.

19542935412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 168 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 19542935412 in words is "nineteen billion, five hundred forty-two million, nine hundred thirty-five thousand, four hundred twelve".