19942845245730 has 64 divisors (see below), whose sum is σ = 58015549814400. Its totient is φ = 4834629149760.

The previous prime is 19942845245723. The next prime is 19942845245749. The reversal of 19942845245730 is 3754254824991.

It is a happy number.

19942845245730 is a `hidden beast` number, since 1 + 9 + 9 + 4 + 2 + 8 + 4 + 52 + 4 + 573 + 0 = 666.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3357378385 + ... + 3357384324.

It is an arithmetic number, because the mean of its divisors is an integer number (906492965850).

Almost surely, 2^{19942845245730} is an apocalyptic number.

19942845245730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19942845245730 is an abundant number, since it is smaller than the sum of its proper divisors (38072704568670).

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

19942845245730 is a wasteful number, since it uses less digits than its factorization.

19942845245730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714762736 (or 6714762730 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 19942845245730 in words is "nineteen trillion, nine hundred forty-two billion, eight hundred forty-five million, two hundred forty-five thousand, seven hundred thirty".