2585877798659 has 4 divisors (see below), whose sum is σ = 2599276129416. Its totient is φ = 2572479467904.

The previous prime is 2585877798619. The next prime is 2585877798667. The reversal of 2585877798659 is 9568977785852.

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 2585877798659 - 2¹⁶ = 2585877733123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2585877798619) 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, 6699165089 + ... + 6699165474.

It is an arithmetic number, because the mean of its divisors is an integer number (649819032354).

Almost surely, 2^{2585877798659} is an apocalyptic number.

2585877798659 is a deficient number, since it is larger than the sum of its proper divisors (13398330757).

2585877798659 is a wasteful number, since it uses less digits than its factorization.

2585877798659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398330756.

The product of its digits is 21337344000, while the sum is 86.

The spelling of 2585877798659 in words is "two trillion, five hundred eighty-five billion, eight hundred seventy-seven million, seven hundred ninety-eight thousand, six hundred fifty-nine".