26553584091 has 4 divisors (see below), whose sum is σ = 35404778792. Its totient is φ = 17702389392.

The previous prime is 26553584063. The next prime is 26553584137. The reversal of 26553584091 is 19048535562.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 26553584091 - 2⁷ = 26553583963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26553584091.

It is not an unprimeable number, because it can be changed into a prime (26553580091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4425597346 + ... + 4425597351.

It is an arithmetic number, because the mean of its divisors is an integer number (8851194698).

Almost surely, 2^26553584091 is an apocalyptic number.

26553584091 is a deficient number, since it is larger than the sum of its proper divisors (8851194701).

26553584091 is an equidigital number, since it uses as much as digits as its factorization.

26553584091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851194700.

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 26553584091 in words is "twenty-six billion, five hundred fifty-three million, five hundred eighty-four thousand, ninety-one".