421117272632 has 64 divisors (see below), whose sum is σ = 915668582400. Its totient is φ = 177827086080.

The previous prime is 421117272617. The next prime is 421117272659. The reversal of 421117272632 is 236272711124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6580244 + ... + 6643932.

It is an arithmetic number, because the mean of its divisors is an integer number (14307321600).

Almost surely, 2^421117272632 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 421117272632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457834291200).

421117272632 is an abundant number, since it is smaller than the sum of its proper divisors (494551309768).

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

421117272632 is a wasteful number, since it uses less digits than its factorization.

421117272632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65436 (or 65432 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

Adding to 421117272632 its reverse (236272711124), we get a palindrome (657389983756).

The spelling of 421117272632 in words is "four hundred twenty-one billion, one hundred seventeen million, two hundred seventy-two thousand, six hundred thirty-two".