1994012645694 has 16 divisors (see below), whose sum is σ = 4014790563600. Its totient is φ = 660210003200.

The previous prime is 1994012645641. The next prime is 1994012645711. The reversal of 1994012645694 is 4965462104991.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1115218707 + ... + 1115220494.

It is an arithmetic number, because the mean of its divisors is an integer number (250924410225).

Almost surely, 2^{1994012645694} is an apocalyptic number.

1994012645694 is an abundant number, since it is smaller than the sum of its proper divisors (2020777917906).

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

1994012645694 is a wasteful number, since it uses less digits than its factorization.

1994012645694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230439355.

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 1994012645694 in words is "one trillion, nine hundred ninety-four billion, twelve million, six hundred forty-five thousand, six hundred ninety-four".