536466888721 has 3 divisors (see below), whose sum is σ = 536467621161. Its totient is φ = 536466156282.

The previous prime is 536466888703. The next prime is 536466888731. The reversal of 536466888721 is 127888664635.

It is a happy number.

The square root of 536466888721 is 732439.

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, and also an emirpimes, since its reverse is a distinct semiprime: 127888664635 = 5 ⋅25577732927.

It is not a de Polignac number, because 536466888721 - 2²³ = 536458500113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536466888731) 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, 366220 + ... + 1098658.

It is an arithmetic number, because the mean of its divisors is an integer number (178822540387).

Almost surely, 2^536466888721 is an apocalyptic number.

536466888721 is the 732439-th square number.

536466888721 is the 366220-th centered octagonal number.

It is an amenable number.

536466888721 is a deficient number, since it is larger than the sum of its proper divisors (732440).

536466888721 is an frugal number, since it uses more digits than its factorization.

536466888721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464878 (or 732439 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 64.

Multiplying 536466888721 by its sum of digits (64), we get a square (34333880878144 = 5859512²).

The spelling of 536466888721 in words is "five hundred thirty-six billion, four hundred sixty-six million, eight hundred eighty-eight thousand, seven hundred twenty-one".