194213857782 has 48 divisors (see below), whose sum is σ = 451916876592. Its totient is φ = 55480783680.

The previous prime is 194213857763. The next prime is 194213857793. The reversal of 194213857782 is 287758312491.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1908748 + ... + 2007920.

It is an arithmetic number, because the mean of its divisors is an integer number (9414934929).

Almost surely, 2^194213857782 is an apocalyptic number.

194213857782 is an abundant number, since it is smaller than the sum of its proper divisors (257703018810).

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

194213857782 is a wasteful number, since it uses less digits than its factorization.

194213857782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105853 (or 105846 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The spelling of 194213857782 in words is "one hundred ninety-four billion, two hundred thirteen million, eight hundred fifty-seven thousand, seven hundred eighty-two".