1678682556390 has 32 divisors (see below), whose sum is σ = 4604386440960. Its totient is φ = 383698869984.

The previous prime is 1678682556379. The next prime is 1678682556449. The reversal of 1678682556390 is 936552868761.

It is a congruent number.

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, 3996863020 + ... + 3996863439.

It is an arithmetic number, because the mean of its divisors is an integer number (143887076280).

Almost surely, 2^{1678682556390} is an apocalyptic number.

1678682556390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1678682556390 is an abundant number, since it is smaller than the sum of its proper divisors (2925703884570).

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

1678682556390 is a wasteful number, since it uses less digits than its factorization.

1678682556390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7993726476.

The product of its (nonzero) digits is 130636800, while the sum is 66.

The spelling of 1678682556390 in words is "one trillion, six hundred seventy-eight billion, six hundred eighty-two million, five hundred fifty-six thousand, three hundred ninety".