5479578729 has 6 divisors (see below), whose sum is σ = 7914947066. Its totient is φ = 3653052480.

The previous prime is 5479578697. The next prime is 5479578733. The reversal of 5479578729 is 9278759745.

5479578729 is a `hidden beast` number, since 54 + 7 + 9 + 578 + 7 + 2 + 9 = 666.

5479578729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3897130329 + 1582448400 = 62427^2 + 39780^2 .

It is not a de Polignac number, because 5479578729 - 2⁵ = 5479578697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5479578229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 304421032 + ... + 304421049.

Almost surely, 2^5479578729 is an apocalyptic number.

It is an amenable number.

5479578729 is a deficient number, since it is larger than the sum of its proper divisors (2435368337).

5479578729 is a wasteful number, since it uses less digits than its factorization.

5479578729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608842087 (or 608842084 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 63.

The square root of 5479578729 is about 74024.1766519561. The cubic root of 5479578729 is about 1762.9867854758.

The spelling of 5479578729 in words is "five billion, four hundred seventy-nine million, five hundred seventy-eight thousand, seven hundred twenty-nine".