434229599521 has 3 divisors (see below), whose sum is σ = 434230258483. Its totient is φ = 434228940560.

The previous prime is 434229599513. The next prime is 434229599549. The reversal of 434229599521 is 125995922434.

The square root of 434229599521 is 658961.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 274325585121 + 159904014400 = 523761^2 + 399880^2 .

It is not a de Polignac number, because 434229599521 - 2³ = 434229599513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434229599501) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 329481 + ... + 988441.

Almost surely, 2^434229599521 is an apocalyptic number.

434229599521 is the 658961-st square number.

434229599521 is the 329481-st centered octagonal number.

It is an amenable number.

434229599521 is a deficient number, since it is larger than the sum of its proper divisors (658962).

434229599521 is an frugal number, since it uses more digits than its factorization.

434229599521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317922 (or 658961 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The spelling of 434229599521 in words is "four hundred thirty-four billion, two hundred twenty-nine million, five hundred ninety-nine thousand, five hundred twenty-one".