13958473613 has 4 divisors (see below), whose sum is σ = 15952541280. Its totient is φ = 11964405948.

The previous prime is 13958473603. The next prime is 13958473621. The reversal of 13958473613 is 31637485931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31637485931 = 4507 ⋅7019633.

It is a cyclic number.

It is not a de Polignac number, because 13958473613 - 2⁸ = 13958473357 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 (13958473603) 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, 997033823 + ... + 997033836.

It is an arithmetic number, because the mean of its divisors is an integer number (3988135320).

Almost surely, 2^13958473613 is an apocalyptic number.

It is an amenable number.

13958473613 is a deficient number, since it is larger than the sum of its proper divisors (1994067667).

13958473613 is an equidigital number, since it uses as much as digits as its factorization.

13958473613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994067666.

The product of its digits is 1632960, while the sum is 50.

The spelling of 13958473613 in words is "thirteen billion, nine hundred fifty-eight million, four hundred seventy-three thousand, six hundred thirteen".