891683020794 has 16 divisors (see below), whose sum is σ = 1803403863360. Its totient is φ = 293888036640.

The previous prime is 891683020777. The next prime is 891683020819. The reversal of 891683020794 is 497020386198.

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, 834908662 + ... + 834909729.

It is an arithmetic number, because the mean of its divisors is an integer number (112712741460).

Almost surely, 2^891683020794 is an apocalyptic number.

891683020794 is an abundant number, since it is smaller than the sum of its proper divisors (911720842566).

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

891683020794 is a wasteful number, since it uses less digits than its factorization.

891683020794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669818485.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 891683020794 in words is "eight hundred ninety-one billion, six hundred eighty-three million, twenty thousand, seven hundred ninety-four".