1994341739874 has 64 divisors (see below), whose sum is σ = 4378633113600. Its totient is φ = 600549577920.

The previous prime is 1994341739833. The next prime is 1994341739879. The reversal of 1994341739874 is 4789371434991.

It is a junction number, because it is equal to n+sod(n) for n = 1994341739799 and 1994341739808.

It is not an unprimeable number, because it can be changed into a prime (1994341739879) by changing a digit.

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, 131207727 + ... + 131222925.

It is an arithmetic number, because the mean of its divisors is an integer number (68416142400).

Almost surely, 2^{1994341739874} is an apocalyptic number.

1994341739874 is an abundant number, since it is smaller than the sum of its proper divisors (2384291373726).

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

1994341739874 is a wasteful number, since it uses less digits than its factorization.

1994341739874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27575.

The product of its digits is 164602368, while the sum is 69.

The spelling of 1994341739874 in words is "one trillion, nine hundred ninety-four billion, three hundred forty-one million, seven hundred thirty-nine thousand, eight hundred seventy-four".