5478767121 has 4 divisors (see below), whose sum is σ = 7305022832. Its totient is φ = 3652511412.

The previous prime is 5478767027. The next prime is 5478767159. The reversal of 5478767121 is 1217678745.

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.

It is not a de Polignac number, because 5478767121 - 2¹¹ = 5478765073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478767221) 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, 913127851 + ... + 913127856.

It is an arithmetic number, because the mean of its divisors is an integer number (1826255708).

Almost surely, 2^5478767121 is an apocalyptic number.

It is an amenable number.

5478767121 is a deficient number, since it is larger than the sum of its proper divisors (1826255711).

5478767121 is a wasteful number, since it uses less digits than its factorization.

5478767121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826255710.

The product of its digits is 658560, while the sum is 48.

The square root of 5478767121 is about 74018.6944021576. The cubic root of 5478767121 is about 1762.8997395610.

The spelling of 5478767121 in words is "five billion, four hundred seventy-eight million, seven hundred sixty-seven thousand, one hundred twenty-one".