961728244169 has 32 divisors (see below), whose sum is σ = 1269942250752. Its totient is φ = 705109248000.

The previous prime is 961728244111. The next prime is 961728244181. The reversal of 961728244169 is 961442827169.

It is a cyclic number.

It is not a de Polignac number, because 961728244169 - 2²⁴ = 961711466953 is a prime.

It is a super-2 number, since 2×961728244169² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (961728244369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4424309 + ... + 4636589.

It is an arithmetic number, because the mean of its divisors is an integer number (39685695336).

Almost surely, 2^961728244169 is an apocalyptic number.

It is an amenable number.

961728244169 is a deficient number, since it is larger than the sum of its proper divisors (308214006583).

961728244169 is a wasteful number, since it uses less digits than its factorization.

961728244169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215777.

The product of its digits is 10450944, while the sum is 59.

The spelling of 961728244169 in words is "nine hundred sixty-one billion, seven hundred twenty-eight million, two hundred forty-four thousand, one hundred sixty-nine".