1682723636778 has 16 divisors (see below), whose sum is σ = 3474010089216. Its totient is φ = 542814076320.

The previous prime is 1682723636719. The next prime is 1682723636801. The reversal of 1682723636778 is 8776363272861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4523450451 + ... + 4523450822.

It is an arithmetic number, because the mean of its divisors is an integer number (217125630576).

Almost surely, 2^{1682723636778} is an apocalyptic number.

1682723636778 is an abundant number, since it is smaller than the sum of its proper divisors (1791286452438).

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

1682723636778 is a wasteful number, since it uses less digits than its factorization.

1682723636778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046901309.

The product of its digits is 170698752, while the sum is 66.

The spelling of 1682723636778 in words is "one trillion, six hundred eighty-two billion, seven hundred twenty-three million, six hundred thirty-six thousand, seven hundred seventy-eight".