1994408848758 has 16 divisors (see below), whose sum is σ = 4223454032880. Its totient is φ = 625696893696.

The previous prime is 1994408848711. The next prime is 1994408848777. The reversal of 1994408848758 is 8578488044991.

It is a super-3 number, since 3×1994408848758³ (a number of 38 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1994408848758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9776513863 + ... + 9776514066.

It is an arithmetic number, because the mean of its divisors is an integer number (263965877055).

Almost surely, 2^{1994408848758} is an apocalyptic number.

1994408848758 is an abundant number, since it is smaller than the sum of its proper divisors (2229045184122).

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

1994408848758 is a wasteful number, since it uses less digits than its factorization.

1994408848758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19553027951.

The product of its (nonzero) digits is 743178240, while the sum is 75.

The spelling of 1994408848758 in words is "one trillion, nine hundred ninety-four billion, four hundred eight million, eight hundred forty-eight thousand, seven hundred fifty-eight".