2683686861828 has 72 divisors (see below), whose sum is σ = 7755258824768. Its totient is φ = 766531729728.

The previous prime is 2683686861733. The next prime is 2683686861847. The reversal of 2683686861828 is 8281686863862.

2683686861828 is a `hidden beast` number, since 2 + 6 + 8 + 368 + 6 + 86 + 182 + 8 = 666.

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, 817126 + ... + 2456637.

Almost surely, 2^{2683686861828} is an apocalyptic number.

2683686861828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2683686861828 is an abundant number, since it is smaller than the sum of its proper divisors (5071571962940).

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

2683686861828 is a wasteful number, since it uses less digits than its factorization.

2683686861828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277033 (or 3277028 counting only the distinct ones).

The product of its digits is 509607936, while the sum is 72.

The spelling of 2683686861828 in words is "two trillion, six hundred eighty-three billion, six hundred eighty-six million, eight hundred sixty-one thousand, eight hundred twenty-eight".