1346642385543 has 64 divisors (see below), whose sum is σ = 2534623436800. Its totient is φ = 687403376640.

The previous prime is 1346642385521. The next prime is 1346642385623. The reversal of 1346642385543 is 3455832466431.

1346642385543 is a `hidden beast` number, since 1 + 3 + 4 + 6 + 64 + 2 + 38 + 5 + 543 = 666.

It is not a de Polignac number, because 1346642385543 - 2⁵ = 1346642385511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1346642385543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346642385343) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 8763898 + ... + 8916231.

It is an arithmetic number, because the mean of its divisors is an integer number (39603491200).

Almost surely, 2^{1346642385543} is an apocalyptic number.

1346642385543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1346642385543 is a deficient number, since it is larger than the sum of its proper divisors (1187981051257).

1346642385543 is a wasteful number, since it uses less digits than its factorization.

1346642385543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17680189 (or 17680183 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 54.

The spelling of 1346642385543 in words is "one trillion, three hundred forty-six billion, six hundred forty-two million, three hundred eighty-five thousand, five hundred forty-three".