13653451678 has 16 divisors (see below), whose sum is σ = 20780907696. Its totient is φ = 6727181440.

The previous prime is 13653451667. The next prime is 13653451703. The reversal of 13653451678 is 87615435631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135508 + ... + 213703.

It is an arithmetic number, because the mean of its divisors is an integer number (1298806731).

Almost surely, 2^13653451678 is an apocalyptic number.

13653451678 is a deficient number, since it is larger than the sum of its proper divisors (7127456018).

13653451678 is a wasteful number, since it uses less digits than its factorization.

13653451678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349499.

The product of its digits is 1814400, while the sum is 49.

The spelling of 13653451678 in words is "thirteen billion, six hundred fifty-three million, four hundred fifty-one thousand, six hundred seventy-eight".