534438488809 has 3 divisors (see below), whose sum is σ = 534439219863. Its totient is φ = 534437757756.

The previous prime is 534438488777. The next prime is 534438488893. The reversal of 534438488809 is 908884834435.

The square root of 534438488809 is 731053.

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., 294365928025 + 240072560784 = 542555^2 + 489972^2 .

It is not a de Polignac number, because 534438488809 - 2⁵ = 534438488777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534438488009) 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, 365527 + ... + 1096579.

It is an arithmetic number, because the mean of its divisors is an integer number (178146406621).

Almost surely, 2^534438488809 is an apocalyptic number.

534438488809 is the 731053-rd square number.

534438488809 is the 365527-th centered octagonal number.

It is an amenable number.

534438488809 is a deficient number, since it is larger than the sum of its proper divisors (731054).

534438488809 is an frugal number, since it uses more digits than its factorization.

534438488809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462106 (or 731053 counting only the distinct ones).

The product of its (nonzero) digits is 106168320, while the sum is 64.

Multiplying 534438488809 by its sum of digits (64), we get a square (34204063283776 = 5848424²).

The spelling of 534438488809 in words is "five hundred thirty-four billion, four hundred thirty-eight million, four hundred eighty-eight thousand, eight hundred nine".