423610956520 has 32 divisors (see below), whose sum is σ = 1009190809800. Its totient is φ = 159477065728.

The previous prime is 423610956497. The next prime is 423610956529. The reversal of 423610956520 is 25659016324.

It can be written as a sum of positive squares in 4 ways, for example, as 417489145956 + 6121810564 = 646134^2 + 78242^2 .

It is not an unprimeable number, because it can be changed into a prime (423610956529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311477965 + ... + 311479324.

Almost surely, 2^423610956520 is an apocalyptic number.

423610956520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423610956520 is an abundant number, since it is smaller than the sum of its proper divisors (585579853280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423610956520 is a wasteful number, since it uses less digits than its factorization.

423610956520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622957317 (or 622957313 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 423610956520 in words is "four hundred twenty-three billion, six hundred ten million, nine hundred fifty-six thousand, five hundred twenty".