259312099819 has 4 divisors (see below), whose sum is σ = 259314259960. Its totient is φ = 259309939680.

The previous prime is 259312099817. The next prime is 259312099841. The reversal of 259312099819 is 918990213952.

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

It is a cyclic number.

It is not a de Polignac number, because 259312099819 - 2¹ = 259312099817 is a prime.

It is a super-2 number, since 2×259312099819² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259312099817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888702 + ... + 1143859.

It is an arithmetic number, because the mean of its divisors is an integer number (64828564990).

Almost surely, 2^259312099819 is an apocalyptic number.

259312099819 is a deficient number, since it is larger than the sum of its proper divisors (2160141).

259312099819 is a wasteful number, since it uses less digits than its factorization.

259312099819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160140.

The product of its (nonzero) digits is 3149280, while the sum is 58.

The spelling of 259312099819 in words is "two hundred fifty-nine billion, three hundred twelve million, ninety-nine thousand, eight hundred nineteen".