19954523341350 has 384 divisors, whose sum is σ = 59535856128000. Its totient is φ = 4885349760000.

The previous prime is 19954523341321. The next prime is 19954523341367. The reversal of 19954523341350 is 5314332545991.

It is a happy number.

19954523341350 is a `hidden beast` number, since 1 + 9 + 9 + 54 + 5 + 233 + 4 + 1 + 350 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6649289850 + ... + 6649292850.

It is an arithmetic number, because the mean of its divisors is an integer number (155041292000).

Almost surely, 2^{19954523341350} is an apocalyptic number.

19954523341350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19954523341350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29767928064000).

19954523341350 is an abundant number, since it is smaller than the sum of its proper divisors (39581332786650).

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

19954523341350 is a wasteful number, since it uses less digits than its factorization.

19954523341350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957 (or 4946 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 54.

The spelling of 19954523341350 in words is "nineteen trillion, nine hundred fifty-four billion, five hundred twenty-three million, three hundred forty-one thousand, three hundred fifty".