289347979617 has 6 divisors (see below), whose sum is σ = 417947081682. Its totient is φ = 192898653072.

The previous prime is 289347979567. The next prime is 289347979619. The reversal of 289347979617 is 716979743982.

289347979617 is a `hidden beast` number, since 2 + 8 + 93 + 479 + 7 + 9 + 61 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 245182435281 + 44165544336 = 495159^2 + 210156^2 .

It is not a de Polignac number, because 289347979617 - 2⁷ = 289347979489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289347979619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16074887748 + ... + 16074887765.

It is an arithmetic number, because the mean of its divisors is an integer number (69657846947).

Almost surely, 2^289347979617 is an apocalyptic number.

It is an amenable number.

289347979617 is a deficient number, since it is larger than the sum of its proper divisors (128599102065).

289347979617 is a wasteful number, since it uses less digits than its factorization.

289347979617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32149775519 (or 32149775516 counting only the distinct ones).

The product of its digits is 288054144, while the sum is 72.

The spelling of 289347979617 in words is "two hundred eighty-nine billion, three hundred forty-seven million, nine hundred seventy-nine thousand, six hundred seventeen".