478720252447 has 2 divisors, whose sum is σ = 478720252448. Its totient is φ = 478720252446.

The previous prime is 478720252441. The next prime is 478720252453. The reversal of 478720252447 is 744252027874.

It is a balanced prime because it is at equal distance from previous prime (478720252441) and next prime (478720252453).

It is a cyclic number.

It is not a de Polignac number, because 478720252447 - 2¹¹ = 478720250399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478720252394 and 478720252403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478720252441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239360126223 + 239360126224.

It is an arithmetic number, because the mean of its divisors is an integer number (239360126224).

Almost surely, 2^478720252447 is an apocalyptic number.

478720252447 is a deficient number, since it is larger than the sum of its proper divisors (1).

478720252447 is an equidigital number, since it uses as much as digits as its factorization.

478720252447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7024640, while the sum is 52.

The spelling of 478720252447 in words is "four hundred seventy-eight billion, seven hundred twenty million, two hundred fifty-two thousand, four hundred forty-seven".