421535042050 has 12 divisors (see below), whose sum is σ = 784055178306. Its totient is φ = 168614016800.

The previous prime is 421535042023. The next prime is 421535042069. The reversal of 421535042050 is 50240535124.

It can be written as a sum of positive squares in 3 ways, for example, as 219485691049 + 202049351001 = 468493^2 + 449499^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4215350371 + ... + 4215350470.

Almost surely, 2^421535042050 is an apocalyptic number.

421535042050 is a deficient number, since it is larger than the sum of its proper divisors (362520136256).

421535042050 is a wasteful number, since it uses less digits than its factorization.

421535042050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8430700853 (or 8430700848 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 421535042050 its reverse (50240535124), we get a palindrome (471775577174).

The spelling of 421535042050 in words is "four hundred twenty-one billion, five hundred thirty-five million, forty-two thousand, fifty".