26830856238 has 16 divisors (see below), whose sum is σ = 53678943696. Its totient is φ = 8940746880.

The previous prime is 26830856233. The next prime is 26830856267. The reversal of 26830856238 is 83265803862.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26830856233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697681 + ... + 735132.

It is an arithmetic number, because the mean of its divisors is an integer number (3354933981).

Almost surely, 2^26830856238 is an apocalyptic number.

26830856238 is an abundant number, since it is smaller than the sum of its proper divisors (26848087458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26830856238 is a wasteful number, since it uses less digits than its factorization.

26830856238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435939.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 26830856238 in words is "twenty-six billion, eight hundred thirty million, eight hundred fifty-six thousand, two hundred thirty-eight".