19945944373230 has 224 divisors, whose sum is σ = 54670943488896. Its totient is φ = 5236221868992.

The previous prime is 19945944373193. The next prime is 19945944373321. The reversal of 19945944373230 is 3237344954991.

It is a happy number.

19945944373230 is a `hidden beast` number, since 1 + 9 + 9 + 4 + 594 + 4 + 3 + 7 + 3 + 2 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 171176569 + ... + 171293051.

It is an arithmetic number, because the mean of its divisors is an integer number (244066712004).

Almost surely, 2^{19945944373230} is an apocalyptic number.

19945944373230 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 19945944373230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27335471744448).

19945944373230 is an abundant number, since it is smaller than the sum of its proper divisors (34724999115666).

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

19945944373230 is a wasteful number, since it uses less digits than its factorization.

19945944373230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116874 (or 116859 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 63.

The spelling of 19945944373230 in words is "nineteen trillion, nine hundred forty-five billion, nine hundred forty-four million, three hundred seventy-three thousand, two hundred thirty".