421471266476772 has 48 divisors (see below), whose sum is σ = 985529639001600. Its totient is φ = 140190921838080.

The previous prime is 421471266476759. The next prime is 421471266476779. The reversal of 421471266476772 is 277674662174124.

It is not an unprimeable number, because it can be changed into a prime (421471266476779) 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, 129266022 + ... + 132486402.

It is an arithmetic number, because the mean of its divisors is an integer number (20531867479200).

Almost surely, 2^{421471266476772} is an apocalyptic number.

It is an amenable number.

421471266476772 is an abundant number, since it is smaller than the sum of its proper divisors (564058372524828).

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

421471266476772 is a wasteful number, since it uses less digits than its factorization.

421471266476772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243636 (or 3243634 counting only the distinct ones).

The product of its digits is 265531392, while the sum is 66.

The spelling of 421471266476772 in words is "four hundred twenty-one trillion, four hundred seventy-one billion, two hundred sixty-six million, four hundred seventy-six thousand, seven hundred seventy-two".