1685028839976 has 48 divisors (see below), whose sum is σ = 4832068000500. Its totient is φ = 528636498432.

The previous prime is 1685028839969. The next prime is 1685028840007. The reversal of 1685028839976 is 6799388205861.

1685028839976 is a `hidden beast` number, since 1 + 6 + 8 + 502 + 88 + 39 + 9 + 7 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1335896756100 + 349132083876 = 1155810^2 + 590874^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688327551 + ... + 688329998.

Almost surely, 2^{1685028839976} is an apocalyptic number.

It is an amenable number.

1685028839976 is an abundant number, since it is smaller than the sum of its proper divisors (3147039160524).

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

1685028839976 is a wasteful number, since it uses less digits than its factorization.

1685028839976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376657578 (or 1376657571 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 72.

The spelling of 1685028839976 in words is "one trillion, six hundred eighty-five billion, twenty-eight million, eight hundred thirty-nine thousand, nine hundred seventy-six".