421333045542 has 12 divisors (see below), whose sum is σ = 912888265380. Its totient is φ = 140444348508.

The previous prime is 421333045513. The next prime is 421333045543. The reversal of 421333045542 is 245540333124.

421333045542 is a `hidden beast` number, since 4 + 2 + 133 + 30 + 455 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 421333045497 and 421333045506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421333045543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11703695692 + ... + 11703695727.

It is an arithmetic number, because the mean of its divisors is an integer number (76074022115).

Almost surely, 2^421333045542 is an apocalyptic number.

421333045542 is an abundant number, since it is smaller than the sum of its proper divisors (491555219838).

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

421333045542 is a wasteful number, since it uses less digits than its factorization.

421333045542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23407391427 (or 23407391424 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 421333045542 its reverse (245540333124), we get a palindrome (666873378666).

The spelling of 421333045542 in words is "four hundred twenty-one billion, three hundred thirty-three million, forty-five thousand, five hundred forty-two".