530621919844 has 45 divisors (see below), whose sum is σ = 962079722835. Its totient is φ = 256075094520.

The previous prime is 530621919829. The next prime is 530621919847. The reversal of 530621919844 is 448919126035.

The square root of 530621919844 is 728438.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530621919791 and 530621919800.

It is not an unprimeable number, because it can be changed into a prime (530621919847) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1400057647 + ... + 1400058025.

Almost surely, 2^530621919844 is an apocalyptic number.

530621919844 is the 728438-th square number.

It is an amenable number.

530621919844 is a deficient number, since it is larger than the sum of its proper divisors (431457802991).

530621919844 is an frugal number, since it uses more digits than its factorization.

530621919844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 530621919844 in words is "five hundred thirty billion, six hundred twenty-one million, nine hundred nineteen thousand, eight hundred forty-four".