1985674712268 has 48 divisors (see below), whose sum is σ = 5064116476160. Its totient is φ = 601857774144.

The previous prime is 1985674712267. The next prime is 1985674712291. The reversal of 1985674712268 is 8622174765891.

It is a junction number, because it is equal to n+sod(n) for n = 1985674712199 and 1985674712208.

It is not an unprimeable number, because it can be changed into a prime (1985674712267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94979728 + ... + 95000631.

Almost surely, 2^{1985674712268} is an apocalyptic number.

It is an amenable number.

1985674712268 is an abundant number, since it is smaller than the sum of its proper divisors (3078441763892).

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

1985674712268 is a wasteful number, since it uses less digits than its factorization.

1985674712268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189980446 (or 189980444 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 66.

The spelling of 1985674712268 in words is "one trillion, nine hundred eighty-five billion, six hundred seventy-four million, seven hundred twelve thousand, two hundred sixty-eight".