26913800269138 has 32 divisors (see below), whose sum is σ = 43912807904304. Its totient is φ = 12319621558272.

The previous prime is 26913800269099. The next prime is 26913800269151. The reversal of 26913800269138 is 83196200831962.

It can be written as a sum of positive squares in 8 ways, for example, as 19006923054249 + 7906877214889 = 4359693^2 + 2811917^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1634170 + ... + 7516522.

Almost surely, 2^{26913800269138} is an apocalyptic number.

26913800269138 is a deficient number, since it is larger than the sum of its proper divisors (16999007635166).

26913800269138 is a wasteful number, since it uses less digits than its factorization.

26913800269138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886046.

The product of its (nonzero) digits is 6718464, while the sum is 58.

It can be divided in two parts, 26913800 and 269138, that multiplied together give a square (7243526304400 = 2691380²).

The spelling of 26913800269138 in words is "twenty-six trillion, nine hundred thirteen billion, eight hundred million, two hundred sixty-nine thousand, one hundred thirty-eight".