26542258133 has 16 divisors (see below), whose sum is σ = 26886140784. Its totient is φ = 26201210880.

The previous prime is 26542258123. The next prime is 26542258147. The reversal of 26542258133 is 33185224562.

It can be written as a sum of positive squares in 8 ways, for example, as 1355933329 + 25186324804 = 36823^2 + 158702^2 .

It is a cyclic number.

It is not a de Polignac number, because 26542258133 - 2¹⁴ = 26542241749 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 (26542258103) 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 15 ways as a sum of consecutive naturals, for example, 22473803 + ... + 22474983.

It is an arithmetic number, because the mean of its divisors is an integer number (1680383799).

Almost surely, 2^26542258133 is an apocalyptic number.

It is an amenable number.

26542258133 is a deficient number, since it is larger than the sum of its proper divisors (343882651).

26542258133 is a wasteful number, since it uses less digits than its factorization.

26542258133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152.

The product of its digits is 345600, while the sum is 41.

The spelling of 26542258133 in words is "twenty-six billion, five hundred forty-two million, two hundred fifty-eight thousand, one hundred thirty-three".