1681554842324 has 24 divisors (see below), whose sum is σ = 3366315758400. Its totient is φ = 719979345216.

The previous prime is 1681554842287. The next prime is 1681554842333. The reversal of 1681554842324 is 4232484551861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28595762 + ... + 28654505.

It is an arithmetic number, because the mean of its divisors is an integer number (140263156600).

Almost surely, 2^{1681554842324} is an apocalyptic number.

1681554842324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1681554842324 is an abundant number, since it is smaller than the sum of its proper divisors (1684760916076).

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

1681554842324 is a wasteful number, since it uses less digits than its factorization.

1681554842324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57251327 (or 57251325 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 53.

The spelling of 1681554842324 in words is "one trillion, six hundred eighty-one billion, five hundred fifty-four million, eight hundred forty-two thousand, three hundred twenty-four".