423107706685 has 4 divisors (see below), whose sum is σ = 507729248028. Its totient is φ = 338486165344.

The previous prime is 423107706653. The next prime is 423107706701. The reversal of 423107706685 is 586607701324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129792311289 + 293315395396 = 360267^2 + 541586^2 .

It is a cyclic number.

It is not a de Polignac number, because 423107706685 - 2⁵ = 423107706653 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42310770664 + ... + 42310770673.

It is an arithmetic number, because the mean of its divisors is an integer number (126932312007).

Almost surely, 2^423107706685 is an apocalyptic number.

It is an amenable number.

423107706685 is a deficient number, since it is larger than the sum of its proper divisors (84621541343).

423107706685 is an equidigital number, since it uses as much as digits as its factorization.

423107706685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84621541342.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 423107706685 in words is "four hundred twenty-three billion, one hundred seven million, seven hundred six thousand, six hundred eighty-five".