432920021868 has 144 divisors (see below), whose sum is σ = 1146309405696. Its totient is φ = 142853518080.

The previous prime is 432920021839. The next prime is 432920021939. The reversal of 432920021868 is 868120029234.

432920021868 is a `hidden beast` number, since 432 + 9 + 200 + 2 + 1 + 8 + 6 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113239005 + ... + 113242827.

It is an arithmetic number, because the mean of its divisors is an integer number (7960481984).

Almost surely, 2^432920021868 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 432920021868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573154702848).

432920021868 is an abundant number, since it is smaller than the sum of its proper divisors (713389383828).

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

432920021868 is a wasteful number, since it uses less digits than its factorization.

432920021868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986 (or 4972 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 432920021868 in words is "four hundred thirty-two billion, nine hundred twenty million, twenty-one thousand, eight hundred sixty-eight".