13640027894 has 8 divisors (see below), whose sum is σ = 21663573768. Its totient is φ = 6418836640.

The previous prime is 13640027831. The next prime is 13640027917. The reversal of 13640027894 is 49872004631.

13640027894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

13640027894 is a modest number, since divided by 27894 gives 1364 as remainder.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 200588612 + ... + 200588679.

It is an arithmetic number, because the mean of its divisors is an integer number (2707946721).

Almost surely, 2^13640027894 is an apocalyptic number.

13640027894 is a deficient number, since it is larger than the sum of its proper divisors (8023545874).

13640027894 is a wasteful number, since it uses less digits than its factorization.

13640027894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401177310.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 13640027894 in words is "thirteen billion, six hundred forty million, twenty-seven thousand, eight hundred ninety-four".