421337521413 has 24 divisors (see below), whose sum is σ = 617002888320. Its totient is φ = 277020881280.

The previous prime is 421337521403. The next prime is 421337521417. The reversal of 421337521413 is 314125733124.

421337521413 is a `hidden beast` number, since 4 + 213 + 3 + 7 + 5 + 21 + 413 = 666.

It is not a de Polignac number, because 421337521413 - 2¹⁰ = 421337520389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421337521417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290070 + ... + 962712.

It is an arithmetic number, because the mean of its divisors is an integer number (25708453680).

Almost surely, 2^421337521413 is an apocalyptic number.

It is an amenable number.

421337521413 is a deficient number, since it is larger than the sum of its proper divisors (195665366907).

421337521413 is a wasteful number, since it uses less digits than its factorization.

421337521413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673609 (or 673606 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The spelling of 421337521413 in words is "four hundred twenty-one billion, three hundred thirty-seven million, five hundred twenty-one thousand, four hundred thirteen".