421268153933124 has 81 divisors (see below), whose sum is σ = 1073104220526429. Its totient is φ = 139345452380160.

The previous prime is 421268153933113. The next prime is 421268153933161. The reversal of 421268153933124 is 421339351862124.

It is a happy number.

The square root of 421268153933124 is 20524818.

It is a perfect power (a square), and thus also a powerful number.

421268153933124 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 6 + 81 + 539 + 3 + 3 + 1 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 264847307256900 + 156420846676224 = 16274130^2 + 12506832^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16132493892 + ... + 16132520004.

Almost surely, 2^{421268153933124} is an apocalyptic number.

421268153933124 is the 20524818-th square number.

It is an amenable number.

421268153933124 is an abundant number, since it is smaller than the sum of its proper divisors (651836066593305).

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

421268153933124 is an frugal number, since it uses more digits than its factorization.

421268153933124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52498 (or 26249 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 421268153933124 in words is "four hundred twenty-one trillion, two hundred sixty-eight billion, one hundred fifty-three million, nine hundred thirty-three thousand, one hundred twenty-four".