421173849648 has 40 divisors (see below), whose sum is σ = 1098014407600. Its totient is φ = 139103288064.

The previous prime is 421173849601. The next prime is 421173849659. The reversal of 421173849648 is 846948371124.

It is a super-2 number, since 2×421173849648² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40244563 + ... + 40255026.

It is an arithmetic number, because the mean of its divisors is an integer number (27450360190).

Almost surely, 2^421173849648 is an apocalyptic number.

421173849648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

421173849648 is an abundant number, since it is smaller than the sum of its proper divisors (676840557952).

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

421173849648 is a wasteful number, since it uses less digits than its factorization.

421173849648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80499709 (or 80499703 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The spelling of 421173849648 in words is "four hundred twenty-one billion, one hundred seventy-three million, eight hundred forty-nine thousand, six hundred forty-eight".