2129085265291 has 8 divisors (see below), whose sum is σ = 2254407489360. Its totient is φ = 2003772142848.

The previous prime is 2129085265277. The next prime is 2129085265369. The reversal of 2129085265291 is 1925625809212.

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

It is a cyclic number.

It is not a de Polignac number, because 2129085265291 - 2¹⁷ = 2129085134219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2129085265201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790841 + ... + 2732266.

It is an arithmetic number, because the mean of its divisors is an integer number (281800936170).

Almost surely, 2^{2129085265291} is an apocalyptic number.

2129085265291 is a deficient number, since it is larger than the sum of its proper divisors (125322224069).

2129085265291 is a wasteful number, since it uses less digits than its factorization.

2129085265291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550813.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 2129085265291 in words is "two trillion, one hundred twenty-nine billion, eighty-five million, two hundred sixty-five thousand, two hundred ninety-one".