26258108780783 has 16 divisors (see below), whose sum is σ = 28696281070464. Its totient is φ = 23828481502560.

The previous prime is 26258108780759. The next prime is 26258108780791. The reversal of 26258108780783 is 38708780185262.

It is a cyclic number.

It is not a de Polignac number, because 26258108780783 - 2¹² = 26258108776687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26258108740783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15066341 + ... + 16718577.

It is an arithmetic number, because the mean of its divisors is an integer number (1793517566904).

Almost surely, 2^{26258108780783} is an apocalyptic number.

26258108780783 is a deficient number, since it is larger than the sum of its proper divisors (2438172289681).

26258108780783 is a wasteful number, since it uses less digits than its factorization.

26258108780783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654822.

The product of its (nonzero) digits is 72253440, while the sum is 65.

The spelling of 26258108780783 in words is "twenty-six trillion, two hundred fifty-eight billion, one hundred eight million, seven hundred eighty thousand, seven hundred eighty-three".