13478115775 has 12 divisors (see below), whose sum is σ = 16796854000. Its totient is φ = 10728305280.

The previous prime is 13478115731. The next prime is 13478115809. The reversal of 13478115775 is 57751187431.

It is not a de Polignac number, because 13478115775 - 2⁷ = 13478115647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1349610 + ... + 1359559.

Almost surely, 2^13478115775 is an apocalyptic number.

13478115775 is a deficient number, since it is larger than the sum of its proper divisors (3318738225).

13478115775 is a wasteful number, since it uses less digits than its factorization.

13478115775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709378 (or 2709373 counting only the distinct ones).

The product of its digits is 823200, while the sum is 49.

The spelling of 13478115775 in words is "thirteen billion, four hundred seventy-eight million, one hundred fifteen thousand, seven hundred seventy-five".