289027489497 has 4 divisors (see below), whose sum is σ = 385369986000. Its totient is φ = 192684992996.

The previous prime is 289027489469. The next prime is 289027489507. The reversal of 289027489497 is 794984720982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289027489497 - 2⁶ = 289027489433 is a prime.

It is a super-3 number, since 3×289027489497³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (289027489417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48171248247 + ... + 48171248252.

It is an arithmetic number, because the mean of its divisors is an integer number (96342496500).

Almost surely, 2^289027489497 is an apocalyptic number.

It is an amenable number.

289027489497 is a deficient number, since it is larger than the sum of its proper divisors (96342496503).

289027489497 is an equidigital number, since it uses as much as digits as its factorization.

289027489497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96342496502.

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 289027489497 in words is "two hundred eighty-nine billion, twenty-seven million, four hundred eighty-nine thousand, four hundred ninety-seven".