421712093844 has 72 divisors (see below), whose sum is σ = 1119427370880. Its totient is φ = 133602460992.

The previous prime is 421712093843. The next prime is 421712093857. The reversal of 421712093844 is 448390217124.

It is a self number, because there is not a number n which added to its sum of digits gives 421712093844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421712093843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1492024 + ... + 1752015.

Almost surely, 2^421712093844 is an apocalyptic number.

It is an amenable number.

421712093844 is an abundant number, since it is smaller than the sum of its proper divisors (697715277036).

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

421712093844 is a wasteful number, since it uses less digits than its factorization.

421712093844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244229 (or 3244224 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 421712093844 in words is "four hundred twenty-one billion, seven hundred twelve million, ninety-three thousand, eight hundred forty-four".