13728464847 has 16 divisors (see below), whose sum is σ = 20382036480. Its totient is φ = 9132703416.

The previous prime is 13728464843. The next prime is 13728464857. The reversal of 13728464847 is 74846482731.

13728464847 is a `hidden beast` number, since 13 + 72 + 84 + 6 + 484 + 7 = 666.

It is not a de Polignac number, because 13728464847 - 2² = 13728464843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13728464793 and 13728464802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728464843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531783 + ... + 557000.

It is an arithmetic number, because the mean of its divisors is an integer number (1273877280).

Almost surely, 2^13728464847 is an apocalyptic number.

13728464847 is a deficient number, since it is larger than the sum of its proper divisors (6653571633).

13728464847 is a wasteful number, since it uses less digits than its factorization.

13728464847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089259 (or 1089253 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 13728464847 in words is "thirteen billion, seven hundred twenty-eight million, four hundred sixty-four thousand, eight hundred forty-seven".