426653356625 has 16 divisors (see below), whose sum is σ = 533693164368. Its totient is φ = 340534368000.

The previous prime is 426653356603. The next prime is 426653356663. The reversal of 426653356625 is 526653356624.

It can be written as a sum of positive squares in 8 ways, for example, as 154090006849 + 272563349776 = 392543^2 + 522076^2 .

It is a de Polignac number, because none of the positive numbers 2^k-426653356625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3887246 + ... + 3995495.

It is an arithmetic number, because the mean of its divisors is an integer number (33355822773).

Almost surely, 2^426653356625 is an apocalyptic number.

It is an amenable number.

426653356625 is a deficient number, since it is larger than the sum of its proper divisors (107039807743).

426653356625 is an equidigital number, since it uses as much as digits as its factorization.

426653356625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883189 (or 7883179 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 53.

Subtracting 426653356625 from its reverse (526653356624), we obtain a palindrome (99999999999).

The spelling of 426653356625 in words is "four hundred twenty-six billion, six hundred fifty-three million, three hundred fifty-six thousand, six hundred twenty-five".