421550614634 has 8 divisors (see below), whose sum is σ = 636353476068. Its totient is φ = 209432789280.

The previous prime is 421550614621. The next prime is 421550614637. The reversal of 421550614634 is 436416055124.

It can be written as a sum of positive squares in 2 ways, for example, as 377729472409 + 43821142225 = 614597^2 + 209335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 421550614591 and 421550614600.

It is not an unprimeable number, because it can be changed into a prime (421550614637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671258627 + ... + 671259254.

Almost surely, 2^421550614634 is an apocalyptic number.

421550614634 is a deficient number, since it is larger than the sum of its proper divisors (214802861434).

421550614634 is a wasteful number, since it uses less digits than its factorization.

421550614634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342518040.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 421550614634 its reverse (436416055124), we get a palindrome (857966669758).

The spelling of 421550614634 in words is "four hundred twenty-one billion, five hundred fifty million, six hundred fourteen thousand, six hundred thirty-four".