13477396745 has 4 divisors (see below), whose sum is σ = 16172876100. Its totient is φ = 10781917392.

The previous prime is 13477396739. The next prime is 13477396759. The reversal of 13477396745 is 54769377431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54769377431 = 67181 ⋅815251.

It can be written as a sum of positive squares in 2 ways, for example, as 10776723721 + 2700673024 = 103811^2 + 51968^2 .

It is a cyclic number.

It is not a de Polignac number, because 13477396745 - 2¹⁴ = 13477380361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1347739670 + ... + 1347739679.

It is an arithmetic number, because the mean of its divisors is an integer number (4043219025).

Almost surely, 2^13477396745 is an apocalyptic number.

It is an amenable number.

13477396745 is a deficient number, since it is larger than the sum of its proper divisors (2695479355).

13477396745 is an equidigital number, since it uses as much as digits as its factorization.

13477396745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695479354.

The product of its digits is 13335840, while the sum is 56.

The spelling of 13477396745 in words is "thirteen billion, four hundred seventy-seven million, three hundred ninety-six thousand, seven hundred forty-five".