421242606365 has 128 divisors (see below), whose sum is σ = 641109427200. Its totient is φ = 264568012800.

The previous prime is 421242606353. The next prime is 421242606371. The reversal of 421242606365 is 563606242124.

It is not a de Polignac number, because 421242606365 - 2⁴ = 421242606349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 202422125 + ... + 202424205.

It is an arithmetic number, because the mean of its divisors is an integer number (5008667400).

Almost surely, 2^421242606365 is an apocalyptic number.

It is an amenable number.

421242606365 is a deficient number, since it is larger than the sum of its proper divisors (219866820835).

421242606365 is a wasteful number, since it uses less digits than its factorization.

421242606365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

Adding to 421242606365 its reverse (563606242124), we get a palindrome (984848848489).

The spelling of 421242606365 in words is "four hundred twenty-one billion, two hundred forty-two million, six hundred six thousand, three hundred sixty-five".