423646545646325 has 12 divisors (see below), whose sum is σ = 525346986461220. Its totient is φ = 338900933381760.

The previous prime is 423646545646279. The next prime is 423646545646339. The reversal of 423646545646325 is 523646545646324.

It can be written as a sum of positive squares in 6 ways, for example, as 7033093392004 + 416613452254321 = 2651998^2 + 20411111^2 .

It is not a de Polignac number, because 423646545646325 - 2²⁸ = 423646277210869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407048264 + ... + 408087713.

It is an arithmetic number, because the mean of its divisors is an integer number (43778915538435).

Almost surely, 2^{423646545646325} is an apocalyptic number.

It is an amenable number.

423646545646325 is a deficient number, since it is larger than the sum of its proper divisors (101700440814895).

423646545646325 is a wasteful number, since it uses less digits than its factorization.

423646545646325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815156776 (or 815156771 counting only the distinct ones).

The product of its digits is 1492992000, while the sum is 65.

Subtracting 423646545646325 from its reverse (523646545646324), we obtain a palindrome (99999999999999).

The spelling of 423646545646325 in words is "four hundred twenty-three trillion, six hundred forty-six billion, five hundred forty-five million, six hundred forty-six thousand, three hundred twenty-five".