421334452136 has 32 divisors (see below), whose sum is σ = 850830060360. Its totient is φ = 194448667392.

The previous prime is 421334452127. The next prime is 421334452169. The reversal of 421334452136 is 631254433124.

It can be written as a sum of positive squares in 4 ways, for example, as 57250132900 + 364084319236 = 239270^2 + 603394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 421334452136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467026 + ... + 1730558.

Almost surely, 2^421334452136 is an apocalyptic number.

It is an amenable number.

421334452136 is an abundant number, since it is smaller than the sum of its proper divisors (429495608224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421334452136 is a wasteful number, since it uses less digits than its factorization.

421334452136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278925 (or 278921 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The spelling of 421334452136 in words is "four hundred twenty-one billion, three hundred thirty-four million, four hundred fifty-two thousand, one hundred thirty-six".