13478449489 has 8 divisors (see below), whose sum is σ = 14076208512. Its totient is φ = 12881668800.

The previous prime is 13478449477. The next prime is 13478449519. The reversal of 13478449489 is 98494487431.

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

It is a cyclic number.

It is not a de Polignac number, because 13478449489 - 2²⁹ = 12941578577 is a prime.

It is a super-2 number, since 2×13478449489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13478449409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216349 + ... + 271594.

It is an arithmetic number, because the mean of its divisors is an integer number (1759526064).

Almost surely, 2^13478449489 is an apocalyptic number.

It is an amenable number.

13478449489 is a deficient number, since it is larger than the sum of its proper divisors (597759023).

13478449489 is a wasteful number, since it uses less digits than its factorization.

13478449489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489167.

The product of its digits is 27869184, while the sum is 61.

The spelling of 13478449489 in words is "thirteen billion, four hundred seventy-eight million, four hundred forty-nine thousand, four hundred eighty-nine".