13728448494 has 24 divisors (see below), whose sum is σ = 29797269840. Its totient is φ = 4568103648.

The previous prime is 13728448493. The next prime is 13728448511. The reversal of 13728448494 is 49484482731.

13728448494 is a `hidden beast` number, since 1 + 3 + 72 + 8 + 4 + 484 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13728448494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728448493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 659962 + ... + 680445.

It is an arithmetic number, because the mean of its divisors is an integer number (1241552910).

Almost surely, 2^13728448494 is an apocalyptic number.

13728448494 is an abundant number, since it is smaller than the sum of its proper divisors (16068821346).

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

13728448494 is a wasteful number, since it uses less digits than its factorization.

13728448494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340984 (or 1340981 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 13728448494 in words is "thirteen billion, seven hundred twenty-eight million, four hundred forty-eight thousand, four hundred ninety-four".