478621793527 has 2 divisors, whose sum is σ = 478621793528. Its totient is φ = 478621793526.

The previous prime is 478621793519. The next prime is 478621793543. The reversal of 478621793527 is 725397126874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478621793527 - 2³ = 478621793519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478621793557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239310896763 + 239310896764.

It is an arithmetic number, because the mean of its divisors is an integer number (239310896764).

Almost surely, 2^478621793527 is an apocalyptic number.

478621793527 is a deficient number, since it is larger than the sum of its proper divisors (1).

478621793527 is an equidigital number, since it uses as much as digits as its factorization.

478621793527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 61.

The spelling of 478621793527 in words is "four hundred seventy-eight billion, six hundred twenty-one million, seven hundred ninety-three thousand, five hundred twenty-seven".