423631342664020 has 48 divisors (see below), whose sum is σ = 900272575339200. Its totient is φ = 167436138885120.

The previous prime is 423631342664017. The next prime is 423631342664021. The reversal of 423631342664020 is 20466243136324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423631342664021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360516205 + ... + 361689364.

It is an arithmetic number, because the mean of its divisors is an integer number (18755678652900).

Almost surely, 2^{423631342664020} is an apocalyptic number.

It is an amenable number.

423631342664020 is an abundant number, since it is smaller than the sum of its proper divisors (476641232675180).

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

423631342664020 is a wasteful number, since it uses less digits than its factorization.

423631342664020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722205928 (or 722205926 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 46.

The spelling of 423631342664020 in words is "four hundred twenty-three trillion, six hundred thirty-one billion, three hundred forty-two million, six hundred sixty-four thousand, twenty".