423871569352 has 128 divisors (see below), whose sum is σ = 1004152826880. Its totient is φ = 162943200000.

The previous prime is 423871569349. The next prime is 423871569379. The reversal of 423871569352 is 253965178324.

It is a junction number, because it is equal to n+sod(n) for n = 423871569293 and 423871569302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16531102 + ... + 16556722.

It is an arithmetic number, because the mean of its divisors is an integer number (7844943960).

Almost surely, 2^423871569352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423871569352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502076413440).

423871569352 is an abundant number, since it is smaller than the sum of its proper divisors (580281257528).

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

423871569352 is a wasteful number, since it uses less digits than its factorization.

423871569352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26003 (or 25999 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 55.

The spelling of 423871569352 in words is "four hundred twenty-three billion, eight hundred seventy-one million, five hundred sixty-nine thousand, three hundred fifty-two".