289473976345 has 8 divisors (see below), whose sum is σ = 348010861320. Its totient is φ = 231151121280.

The previous prime is 289473976343. The next prime is 289473976349. The reversal of 289473976345 is 543679374982.

It can be written as a sum of positive squares in 4 ways, for example, as 32712871689 + 256761104656 = 180867^2 + 506716^2 .

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

It is not a de Polignac number, because 289473976345 - 2¹ = 289473976343 is a prime.

It is a super-3 number, since 3×289473976345³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (289473976343) 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, 53504500 + ... + 53509909.

It is an arithmetic number, because the mean of its divisors is an integer number (43501357665).

Almost surely, 2^289473976345 is an apocalyptic number.

It is an amenable number.

289473976345 is a deficient number, since it is larger than the sum of its proper divisors (58536884975).

289473976345 is a wasteful number, since it uses less digits than its factorization.

289473976345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107014955.

The product of its digits is 274337280, while the sum is 67.

The spelling of 289473976345 in words is "two hundred eighty-nine billion, four hundred seventy-three million, nine hundred seventy-six thousand, three hundred forty-five".