289401741261 has 24 divisors (see below), whose sum is σ = 423125670240. Its totient is φ = 190580927136.

The previous prime is 289401741221. The next prime is 289401741347. The reversal of 289401741261 is 162147104982.

289401741261 is a `hidden beast` number, since 289 + 40 + 1 + 74 + 1 + 261 = 666.

It is not a de Polignac number, because 289401741261 - 2¹¹ = 289401739213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289401741221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5589430 + ... + 5640968.

It is an arithmetic number, because the mean of its divisors is an integer number (17630236260).

Almost surely, 2^289401741261 is an apocalyptic number.

It is an amenable number.

289401741261 is a deficient number, since it is larger than the sum of its proper divisors (133723928979).

289401741261 is a wasteful number, since it uses less digits than its factorization.

289401741261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59145 (or 59142 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 289401741261 in words is "two hundred eighty-nine billion, four hundred one million, seven hundred forty-one thousand, two hundred sixty-one".