26604042255 has 48 divisors (see below), whose sum is σ = 53423323200. Its totient is φ = 11995236864.

The previous prime is 26604042217. The next prime is 26604042323. The reversal of 26604042255 is 55224040662.

26604042255 is a `hidden beast` number, since 2 + 6 + 604 + 0 + 42 + 2 + 5 + 5 = 666.

It is not a de Polignac number, because 26604042255 - 2⁶ = 26604042191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 555480 + ... + 601469.

It is an arithmetic number, because the mean of its divisors is an integer number (1112985900).

Almost surely, 2^26604042255 is an apocalyptic number.

26604042255 is an abundant number, since it is smaller than the sum of its proper divisors (26819280945).

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

26604042255 is a wasteful number, since it uses less digits than its factorization.

26604042255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157040 (or 1157037 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 26604042255 in words is "twenty-six billion, six hundred four million, forty-two thousand, two hundred fifty-five".