421242606399 has 16 divisors (see below), whose sum is σ = 602841962592. Its totient is φ = 260688411648.

The previous prime is 421242606397. The next prime is 421242606403. The reversal of 421242606399 is 993606242124.

It is not a de Polignac number, because 421242606399 - 2¹ = 421242606397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421242606391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56569284 + ... + 56576729.

It is an arithmetic number, because the mean of its divisors is an integer number (37677622662).

Almost surely, 2^421242606399 is an apocalyptic number.

421242606399 is a deficient number, since it is larger than the sum of its proper divisors (181599356193).

421242606399 is a wasteful number, since it uses less digits than its factorization.

421242606399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113146106.

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 421242606399 in words is "four hundred twenty-one billion, two hundred forty-two million, six hundred six thousand, three hundred ninety-nine".