421471266476766 has 96 divisors (see below), whose sum is σ = 930938830061184. Its totient is φ = 127113321720000.

The previous prime is 421471266476759. The next prime is 421471266476779. The reversal of 421471266476766 is 667674662174124.

It is a self number, because there is not a number n which added to its sum of digits gives 421471266476766.

It is a congruent number.

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, 168673516 + ... + 171154016.

It is an arithmetic number, because the mean of its divisors is an integer number (9697279479804).

Almost surely, 2^{421471266476766} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421471266476766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465469415030592).

421471266476766 is an abundant number, since it is smaller than the sum of its proper divisors (509467563584418).

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

421471266476766 is a wasteful number, since it uses less digits than its factorization.

421471266476766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481638 (or 2481627 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 69.

The spelling of 421471266476766 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 sixty-six".