1684854471772 has 6 divisors (see below), whose sum is σ = 2948495325608. Its totient is φ = 842427235884.

The previous prime is 1684854471733. The next prime is 1684854471779. The reversal of 1684854471772 is 2771744584861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684854471779) 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 as a sum of consecutive naturals, namely, 210606808968 + ... + 210606808975.

Almost surely, 2^{1684854471772} is an apocalyptic number.

It is an amenable number.

1684854471772 is a deficient number, since it is larger than the sum of its proper divisors (1263640853836).

1684854471772 is a wasteful number, since it uses less digits than its factorization.

1684854471772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421213617947 (or 421213617945 counting only the distinct ones).

The product of its digits is 84295680, while the sum is 64.

The spelling of 1684854471772 in words is "one trillion, six hundred eighty-four billion, eight hundred fifty-four million, four hundred seventy-one thousand, seven hundred seventy-two".