421471127668 has 24 divisors (see below), whose sum is σ = 761703554304. Its totient is φ = 203847547200.

The previous prime is 421471127663. The next prime is 421471127731. The reversal of 421471127668 is 866721174124.

It is a super-2 number, since 2×421471127668² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421471127663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468553 + ... + 1030768.

It is an arithmetic number, because the mean of its divisors is an integer number (31737648096).

Almost surely, 2^421471127668 is an apocalyptic number.

It is an amenable number.

421471127668 is a deficient number, since it is larger than the sum of its proper divisors (340232426636).

421471127668 is a wasteful number, since it uses less digits than its factorization.

421471127668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501623 (or 1501621 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The spelling of 421471127668 in words is "four hundred twenty-one billion, four hundred seventy-one million, one hundred twenty-seven thousand, six hundred sixty-eight".