259394950197 has 24 divisors (see below), whose sum is σ = 378340541280. Its totient is φ = 171242567520.

The previous prime is 259394950187. The next prime is 259394950231. The reversal of 259394950197 is 791059493952.

259394950197 is a `hidden beast` number, since 2 + 5 + 9 + 39 + 4 + 9 + 501 + 97 = 666.

It is not a de Polignac number, because 259394950197 - 2¹⁰ = 259394949173 is a prime.

It is a super-2 number, since 2×259394950197² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259394950117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2313247 + ... + 2422787.

It is an arithmetic number, because the mean of its divisors is an integer number (15764189220).

Almost surely, 2^259394950197 is an apocalyptic number.

It is an amenable number.

259394950197 is a deficient number, since it is larger than the sum of its proper divisors (118945591083).

259394950197 is a wasteful number, since it uses less digits than its factorization.

259394950197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112113 (or 112110 counting only the distinct ones).

The product of its (nonzero) digits is 27556200, while the sum is 63.

The spelling of 259394950197 in words is "two hundred fifty-nine billion, three hundred ninety-four million, nine hundred fifty thousand, one hundred ninety-seven".