28265280561629 has 8 divisors (see below), whose sum is σ = 28986184409280. Its totient is φ = 27545877036000.

The previous prime is 28265280561589. The next prime is 28265280561689. The reversal of 28265280561629 is 92616508256282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28265280561629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28265280561689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375042347 + ... + 375117704.

It is an arithmetic number, because the mean of its divisors is an integer number (3623273051160).

Almost surely, 2^{28265280561629} is an apocalyptic number.

It is an amenable number.

28265280561629 is a deficient number, since it is larger than the sum of its proper divisors (720903847651).

28265280561629 is an equidigital number, since it uses as much as digits as its factorization.

28265280561629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750161011.

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 28265280561629 in words is "twenty-eight trillion, two hundred sixty-five billion, two hundred eighty million, five hundred sixty-one thousand, six hundred twenty-nine".