5478668329 has 4 divisors (see below), whose sum is σ = 5626740484. Its totient is φ = 5330596176.

The previous prime is 5478668281. The next prime is 5478668401. The reversal of 5478668329 is 9238668745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5134009104 + 344659225 = 71652^2 + 18565^2 .

It is a cyclic number.

It is not a de Polignac number, because 5478668329 - 2²⁹ = 4941797417 is a prime.

It is a super-3 number, since 3×5478668329³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478668729) 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, 74036022 + ... + 74036095.

It is an arithmetic number, because the mean of its divisors is an integer number (1406685121).

Almost surely, 2^5478668329 is an apocalyptic number.

It is an amenable number.

5478668329 is a deficient number, since it is larger than the sum of its proper divisors (148072155).

5478668329 is a wasteful number, since it uses less digits than its factorization.

5478668329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148072154.

The product of its digits is 17418240, while the sum is 58.

The square root of 5478668329 is about 74018.0270542251. The cubic root of 5478668329 is about 1762.8891434157.

The spelling of 5478668329 in words is "five billion, four hundred seventy-eight million, six hundred sixty-eight thousand, three hundred twenty-nine".