423766258657 has 6 divisors (see below), whose sum is σ = 492952586658. Its totient is φ = 363228221664.

The previous prime is 423766258649. The next prime is 423766258679. The reversal of 423766258657 is 756852667324.

It can be written as a sum of positive squares in only one way, i.e., 355417476561 + 68348782096 = 596169^2 + 261436^2 .

It is not a de Polignac number, because 423766258657 - 2³ = 423766258649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423766258595 and 423766258604.

It is not an unprimeable number, because it can be changed into a prime (423766258607) 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 in 5 ways as a sum of consecutive naturals, for example, 4324145448 + ... + 4324145545.

It is an arithmetic number, because the mean of its divisors is an integer number (82158764443).

Almost surely, 2^423766258657 is an apocalyptic number.

It is an amenable number.

423766258657 is a deficient number, since it is larger than the sum of its proper divisors (69186328001).

423766258657 is an equidigital number, since it uses as much as digits as its factorization.

423766258657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648291007 (or 8648291000 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 61.

The spelling of 423766258657 in words is "four hundred twenty-three billion, seven hundred sixty-six million, two hundred fifty-eight thousand, six hundred fifty-seven".