478924438339 has 2 divisors, whose sum is σ = 478924438340. Its totient is φ = 478924438338.

The previous prime is 478924438319. The next prime is 478924438409. The reversal of 478924438339 is 933834429874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478924438339 is a prime.

It is a super-2 number, since 2×478924438339² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (478924438319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239462219169 + 239462219170.

It is an arithmetic number, because the mean of its divisors is an integer number (239462219170).

Almost surely, 2^478924438339 is an apocalyptic number.

478924438339 is a deficient number, since it is larger than the sum of its proper divisors (1).

478924438339 is an equidigital number, since it uses as much as digits as its factorization.

478924438339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125411328, while the sum is 64.

The spelling of 478924438339 in words is "four hundred seventy-eight billion, nine hundred twenty-four million, four hundred thirty-eight thousand, three hundred thirty-nine".