478332403181 has 2 divisors, whose sum is σ = 478332403182. Its totient is φ = 478332403180.

The previous prime is 478332403147. The next prime is 478332403201. The reversal of 478332403181 is 181304233874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252199818025 + 226132585156 = 502195^2 + 475534^2 .

It is a cyclic number.

It is not a de Polignac number, because 478332403181 - 2³⁰ = 477258661357 is a prime.

It is a super-2 number, since 2×478332403181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478332403121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239166201590 + 239166201591.

It is an arithmetic number, because the mean of its divisors is an integer number (239166201591).

Almost surely, 2^478332403181 is an apocalyptic number.

It is an amenable number.

478332403181 is a deficient number, since it is larger than the sum of its proper divisors (1).

478332403181 is an equidigital number, since it uses as much as digits as its factorization.

478332403181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 478332403181 in words is "four hundred seventy-eight billion, three hundred thirty-two million, four hundred three thousand, one hundred eighty-one".