1684669513828 has 48 divisors (see below), whose sum is σ = 3376008598144. Its totient is φ = 720572993280.

The previous prime is 1684669513799. The next prime is 1684669513837. The reversal of 1684669513828 is 8283159664861.

It is a super-2 number, since 2×1684669513828² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45369526 + ... + 45406642.

Almost surely, 2^{1684669513828} is an apocalyptic number.

It is an amenable number.

1684669513828 is an abundant number, since it is smaller than the sum of its proper divisors (1691339084316).

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

1684669513828 is a wasteful number, since it uses less digits than its factorization.

1684669513828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40292 (or 40290 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 67.

The spelling of 1684669513828 in words is "one trillion, six hundred eighty-four billion, six hundred sixty-nine million, five hundred thirteen thousand, eight hundred twenty-eight".