259145342398 has 4 divisors (see below), whose sum is σ = 388718013600. Its totient is φ = 129572671198.

The previous prime is 259145342353. The next prime is 259145342429. The reversal of 259145342398 is 893243541952.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64786335598 + ... + 64786335601.

It is an arithmetic number, because the mean of its divisors is an integer number (97179503400).

Almost surely, 2^259145342398 is an apocalyptic number.

259145342398 is a deficient number, since it is larger than the sum of its proper divisors (129572671202).

259145342398 is a wasteful number, since it uses less digits than its factorization.

259145342398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129572671201.

The product of its digits is 9331200, while the sum is 55.

The spelling of 259145342398 in words is "two hundred fifty-nine billion, one hundred forty-five million, three hundred forty-two thousand, three hundred ninety-eight".