969864523489 has 3 divisors (see below), whose sum is σ = 969865508307. Its totient is φ = 969863538672.

The previous prime is 969864523477. The next prime is 969864523513. The reversal of 969864523489 is 984325468969.

The square root of 969864523489 is 984817.

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

969864523489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2411301025 + 967453222464 = 49105^2 + 983592^2 .

It is not a de Polignac number, because 969864523489 - 2¹⁹ = 969863999201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969864523429) 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, 492409 + ... + 1477225.

It is an arithmetic number, because the mean of its divisors is an integer number (323288502769).

Almost surely, 2^969864523489 is an apocalyptic number.

969864523489 is the 984817-th square number.

969864523489 is the 492409-th centered octagonal number.

It is an amenable number.

969864523489 is a deficient number, since it is larger than the sum of its proper divisors (984818).

969864523489 is an frugal number, since it uses more digits than its factorization.

969864523489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969634 (or 984817 counting only the distinct ones).

The product of its digits is 806215680, while the sum is 73.

The spelling of 969864523489 in words is "nine hundred sixty-nine billion, eight hundred sixty-four million, five hundred twenty-three thousand, four hundred eighty-nine".