259747472309 has 12 divisors (see below), whose sum is σ = 297150559524. Its totient is φ = 225662959104.

The previous prime is 259747472291. The next prime is 259747472363. The reversal of 259747472309 is 903274747952.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4060493284 + 255686979025 = 63722^2 + 505655^2 .

It is not a de Polignac number, because 259747472309 - 2¹⁶ = 259747406773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259747472389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34564712 + ... + 34572225.

It is an arithmetic number, because the mean of its divisors is an integer number (24762546627).

Almost surely, 2^259747472309 is an apocalyptic number.

It is an amenable number.

259747472309 is a deficient number, since it is larger than the sum of its proper divisors (37403087215).

259747472309 is a wasteful number, since it uses less digits than its factorization.

259747472309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69136984 (or 69136967 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 59.

The spelling of 259747472309 in words is "two hundred fifty-nine billion, seven hundred forty-seven million, four hundred seventy-two thousand, three hundred nine".