428482058778623 has 2 divisors, whose sum is σ = 428482058778624. Its totient is φ = 428482058778622.

The previous prime is 428482058778577. The next prime is 428482058778649. The reversal of 428482058778623 is 326877850284824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428482058778623 - 2¹⁶ = 428482058713087 is a prime.

It is a super-2 number, since 2×428482058778623² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428482058778923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214241029389311 + 214241029389312.

It is an arithmetic number, because the mean of its divisors is an integer number (214241029389312).

Almost surely, 2^{428482058778623} is an apocalyptic number.

428482058778623 is a deficient number, since it is larger than the sum of its proper divisors (1).

428482058778623 is an equidigital number, since it uses as much as digits as its factorization.

428482058778623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2312110080, while the sum is 74.

The spelling of 428482058778623 in words is "four hundred twenty-eight trillion, four hundred eighty-two billion, fifty-eight million, seven hundred seventy-eight thousand, six hundred twenty-three".