26138471851856 has 40 divisors (see below), whose sum is σ = 62330202111744. Its totient is φ = 10340494358400.

The previous prime is 26138471851837. The next prime is 26138471851873. The reversal of 26138471851856 is 65815817483162.

It is a junction number, because it is equal to n+sod(n) for n = 26138471851792 and 26138471851801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8976122120 + ... + 8976125031.

Almost surely, 2^{26138471851856} is an apocalyptic number.

26138471851856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26138471851856 is an abundant number, since it is smaller than the sum of its proper divisors (36191730259888).

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

26138471851856 is a wasteful number, since it uses less digits than its factorization.

26138471851856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17952247179 (or 17952247173 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 65.

The spelling of 26138471851856 in words is "twenty-six trillion, one hundred thirty-eight billion, four hundred seventy-one million, eight hundred fifty-one thousand, eight hundred fifty-six".