13745781678 has 8 divisors (see below), whose sum is σ = 27491563368. Its totient is φ = 4581927224.

The previous prime is 13745781611. The next prime is 13745781683. The reversal of 13745781678 is 87618754731.

It is a sphenic number, since it is the product of 3 distinct primes.

13745781678 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145481801 + ... + 1145481812.

It is an arithmetic number, because the mean of its divisors is an integer number (3436445421).

Almost surely, 2^13745781678 is an apocalyptic number.

13745781678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13745781678 is a wasteful number, since it uses less digits than its factorization.

13745781678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290963618.

The product of its digits is 7902720, while the sum is 57.

The spelling of 13745781678 in words is "thirteen billion, seven hundred forty-five million, seven hundred eighty-one thousand, six hundred seventy-eight".