26553530778285 has 16 divisors (see below), whose sum is σ = 48555027709056. Its totient is φ = 12138756927168.

The previous prime is 26553530778221. The next prime is 26553530778319. The reversal of 26553530778285 is 58287703535562.

It is not a de Polignac number, because 26553530778285 - 2⁶ = 26553530778221 is a prime.

It is a congruent number.

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, 126445384554 + ... + 126445384763.

It is an arithmetic number, because the mean of its divisors is an integer number (3034689231816).

Almost surely, 2^{26553530778285} is an apocalyptic number.

It is an amenable number.

26553530778285 is a deficient number, since it is larger than the sum of its proper divisors (22001496930771).

26553530778285 is a wasteful number, since it uses less digits than its factorization.

26553530778285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252890769332.

The product of its (nonzero) digits is 423360000, while the sum is 66.

The spelling of 26553530778285 in words is "twenty-six trillion, five hundred fifty-three billion, five hundred thirty million, seven hundred seventy-eight thousand, two hundred eighty-five".