421344159626 has 12 divisors (see below), whose sum is σ = 680638219926. Its totient is φ = 194465007600.

The previous prime is 421344159583. The next prime is 421344159629. The reversal of 421344159626 is 626951443124.

It can be written as a sum of positive squares in 3 ways, for example, as 271227432025 + 150116727601 = 520795^2 + 387449^2 .

It is not an unprimeable number, because it can be changed into a prime (421344159629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3246176 + ... + 3373476.

Almost surely, 2^421344159626 is an apocalyptic number.

421344159626 is a deficient number, since it is larger than the sum of its proper divisors (259294060300).

421344159626 is an frugal number, since it uses more digits than its factorization.

421344159626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254617 (or 127316 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 47.

The spelling of 421344159626 in words is "four hundred twenty-one billion, three hundred forty-four million, one hundred fifty-nine thousand, six hundred twenty-six".