478720252453 has 2 divisors, whose sum is σ = 478720252454. Its totient is φ = 478720252452.

The previous prime is 478720252447. The next prime is 478720252469. The reversal of 478720252453 is 354252027874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342720088929 + 136000163524 = 585423^2 + 368782^2 .

It is a cyclic number.

It is not a de Polignac number, because 478720252453 - 2³³ = 470130317861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478720252397 and 478720252406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478720252403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239360126226 + 239360126227.

It is an arithmetic number, because the mean of its divisors is an integer number (239360126227).

Almost surely, 2^478720252453 is an apocalyptic number.

It is an amenable number.

478720252453 is a deficient number, since it is larger than the sum of its proper divisors (1).

478720252453 is an equidigital number, since it uses as much as digits as its factorization.

478720252453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3763200, while the sum is 49.

The spelling of 478720252453 in words is "four hundred seventy-eight billion, seven hundred twenty million, two hundred fifty-two thousand, four hundred fifty-three".