969609713721265 has 4 divisors (see below), whose sum is σ = 1163531656465524. Its totient is φ = 775687770977008.

The previous prime is 969609713721217. The next prime is 969609713721347. The reversal of 969609713721265 is 562127317906969.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388283714567056 + 581325999154209 = 19704916^2 + 24110703^2 .

It is a cyclic number.

It is not a de Polignac number, because 969609713721265 - 2³¹ = 969607566237617 is a prime.

It is a super-2 number, since 2×969609713721265² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96960971372122 + ... + 96960971372131.

It is an arithmetic number, because the mean of its divisors is an integer number (290882914116381).

Almost surely, 2^{969609713721265} is an apocalyptic number.

It is an amenable number.

969609713721265 is a deficient number, since it is larger than the sum of its proper divisors (193921942744259).

969609713721265 is a wasteful number, since it uses less digits than its factorization.

969609713721265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193921942744258.

The product of its (nonzero) digits is 462944160, while the sum is 73.

The spelling of 969609713721265 in words is "nine hundred sixty-nine trillion, six hundred nine billion, seven hundred thirteen million, seven hundred twenty-one thousand, two hundred sixty-five".