1913333994000 has 1280 divisors, whose sum is σ = 8119800299520. Its totient is φ = 424569600000.

The previous prime is 1913333993959. The next prime is 1913333994001. The reversal of 1913333994000 is 4993333191.

1913333994000 is a `hidden beast` number, since 191 + 3 + 33 + 399 + 40 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1913333994001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 980693025 + ... + 980694975.

It is an arithmetic number, because the mean of its divisors is an integer number (6343593984).

Almost surely, 2^{1913333994000} is an apocalyptic number.

1913333994000 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 1913333994000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4059900149760).

1913333994000 is an abundant number, since it is smaller than the sum of its proper divisors (6206466305520).

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

1913333994000 is a wasteful number, since it uses less digits than its factorization.

1913333994000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The spelling of 1913333994000 in words is "one trillion, nine hundred thirteen billion, three hundred thirty-three million, nine hundred ninety-four thousand".