13494616840 has 32 divisors (see below), whose sum is σ = 30395655000. Its totient is φ = 5392021504.

The previous prime is 13494616831. The next prime is 13494616841. The reversal of 13494616840 is 4861649431.

It can be written as a sum of positive squares in 4 ways, for example, as 6744679876 + 6749936964 = 82126^2 + 82158^2 .

It is not an unprimeable number, because it can be changed into a prime (13494616841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144415 + ... + 218734.

Almost surely, 2^13494616840 is an apocalyptic number.

13494616840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13494616840 is an abundant number, since it is smaller than the sum of its proper divisors (16901038160).

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

13494616840 is a wasteful number, since it uses less digits than its factorization.

13494616840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364089 (or 364085 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 13494616840 in words is "thirteen billion, four hundred ninety-four million, six hundred sixteen thousand, eight hundred forty".