259842111645 has 32 divisors (see below), whose sum is σ = 434686113792. Its totient is φ = 132293513792.

The previous prime is 259842111643. The next prime is 259842111667. The reversal of 259842111645 is 546111248952.

It is not a de Polignac number, because 259842111645 - 2¹ = 259842111643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259842111594 and 259842111603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259842111643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575139 + ... + 922208.

It is an arithmetic number, because the mean of its divisors is an integer number (13583941056).

Almost surely, 2^259842111645 is an apocalyptic number.

It is an amenable number.

259842111645 is a deficient number, since it is larger than the sum of its proper divisors (174844002147).

259842111645 is a wasteful number, since it uses less digits than its factorization.

259842111645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497881.

The product of its digits is 691200, while the sum is 48.

The spelling of 259842111645 in words is "two hundred fifty-nine billion, eight hundred forty-two million, one hundred eleven thousand, six hundred forty-five".