478640728151 has 2 divisors, whose sum is σ = 478640728152. Its totient is φ = 478640728150.

The previous prime is 478640728129. The next prime is 478640728157. The reversal of 478640728151 is 151827046874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478640728151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478640728093 and 478640728102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478640728157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239320364075 + 239320364076.

It is an arithmetic number, because the mean of its divisors is an integer number (239320364076).

Almost surely, 2^478640728151 is an apocalyptic number.

478640728151 is a deficient number, since it is larger than the sum of its proper divisors (1).

478640728151 is an equidigital number, since it uses as much as digits as its factorization.

478640728151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 478640728151 in words is "four hundred seventy-eight billion, six hundred forty million, seven hundred twenty-eight thousand, one hundred fifty-one".