1943997294000 has 320 divisors, whose sum is σ = 6686824015872. Its totient is φ = 484177408000.

The previous prime is 1943997293993. The next prime is 1943997294013. The reversal of 1943997294000 is 4927993491.

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 63 ways as a sum of consecutive naturals, for example, 13289257 + ... + 13434743.

Almost surely, 2^{1943997294000} is an apocalyptic number.

1943997294000 is a gapful number since it is divisible by the number (10) 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 1943997294000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3343412007936).

1943997294000 is an abundant number, since it is smaller than the sum of its proper divisors (4742826721872).

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

1943997294000 is a wasteful number, since it uses less digits than its factorization.

1943997294000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145661 (or 145645 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 1943997294000 in words is "one trillion, nine hundred forty-three billion, nine hundred ninety-seven million, two hundred ninety-four thousand".