13477147847 has 4 divisors (see below), whose sum is σ = 13481233896. Its totient is φ = 13473061800.

The previous prime is 13477147841. The next prime is 13477147861. The reversal of 13477147847 is 74874177431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74874177431 = 109 ⋅686919059.

It is a cyclic number.

It is not a de Polignac number, because 13477147847 - 2³² = 9182180551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13477147841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038073 + ... + 2044674.

It is an arithmetic number, because the mean of its divisors is an integer number (3370308474).

Almost surely, 2^13477147847 is an apocalyptic number.

13477147847 is a deficient number, since it is larger than the sum of its proper divisors (4086049).

13477147847 is an equidigital number, since it uses as much as digits as its factorization.

13477147847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086048.

The product of its digits is 3687936, while the sum is 53.

The spelling of 13477147847 in words is "thirteen billion, four hundred seventy-seven million, one hundred forty-seven thousand, eight hundred forty-seven".