478487113639 has 2 divisors, whose sum is σ = 478487113640. Its totient is φ = 478487113638.

The previous prime is 478487113603. The next prime is 478487113703. The reversal of 478487113639 is 936311784874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478487113639 - 2⁹ = 478487113127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478487117639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239243556819 + 239243556820.

It is an arithmetic number, because the mean of its divisors is an integer number (239243556820).

Almost surely, 2^478487113639 is an apocalyptic number.

478487113639 is a deficient number, since it is larger than the sum of its proper divisors (1).

478487113639 is an equidigital number, since it uses as much as digits as its factorization.

478487113639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 61.

The spelling of 478487113639 in words is "four hundred seventy-eight billion, four hundred eighty-seven million, one hundred thirteen thousand, six hundred thirty-nine".