19975994429382 has 96 divisors (see below), whose sum is σ = 45996692889888. Its totient is φ = 6243818508288.

The previous prime is 19975994429353. The next prime is 19975994429383. The reversal of 19975994429382 is 28392449957991.

19975994429382 is a `hidden beast` number, since 1 + 9 + 9 + 7 + 5 + 9 + 9 + 442 + 93 + 82 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19975994429383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 671379418 + ... + 671409170.

It is an arithmetic number, because the mean of its divisors is an integer number (479132217603).

Almost surely, 2^{19975994429382} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19975994429382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22998346444944).

19975994429382 is an abundant number, since it is smaller than the sum of its proper divisors (26020698460506).

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

19975994429382 is a wasteful number, since it uses less digits than its factorization.

19975994429382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37814 (or 37811 counting only the distinct ones).

The product of its digits is 3174474240, while the sum is 81.

The spelling of 19975994429382 in words is "nineteen trillion, nine hundred seventy-five billion, nine hundred ninety-four million, four hundred twenty-nine thousand, three hundred eighty-two".