259849795234 has 4 divisors (see below), whose sum is σ = 389774692854. Its totient is φ = 129924897616.

The previous prime is 259849795217. The next prime is 259849795237. The reversal of 259849795234 is 432597948952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 136681787025 + 123168008209 = 369705^2 + 350953^2 .

It is a super-2 number, since 2×259849795234² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 259849795234.

It is not an unprimeable number, because it can be changed into a prime (259849795237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64962448807 + ... + 64962448810.

Almost surely, 2^259849795234 is an apocalyptic number.

259849795234 is a deficient number, since it is larger than the sum of its proper divisors (129924897620).

259849795234 is a wasteful number, since it uses less digits than its factorization.

259849795234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129924897619.

The product of its digits is 195955200, while the sum is 67.

The spelling of 259849795234 in words is "two hundred fifty-nine billion, eight hundred forty-nine million, seven hundred ninety-five thousand, two hundred thirty-four".