5308138478 has 4 divisors (see below), whose sum is σ = 7962207720. Its totient is φ = 2654069238.

The previous prime is 5308138477. The next prime is 5308138481. The reversal of 5308138478 is 8748318035.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5308138477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327034618 + ... + 1327034621.

It is an arithmetic number, because the mean of its divisors is an integer number (1990551930).

Almost surely, 2^5308138478 is an apocalyptic number.

5308138478 is a deficient number, since it is larger than the sum of its proper divisors (2654069242).

5308138478 is a wasteful number, since it uses less digits than its factorization.

5308138478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654069241.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 5308138478 is about 72856.9727479807. The cubic root of 5308138478 is about 1744.4053691062.

The spelling of 5308138478 in words is "five billion, three hundred eight million, one hundred thirty-eight thousand, four hundred seventy-eight".