26555967089 has 4 divisors (see below), whose sum is σ = 26714985024. Its totient is φ = 26396949156.

The previous prime is 26555967079. The next prime is 26555967091. The reversal of 26555967089 is 98076955562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26555967089 - 2³² = 22260999793 is a prime.

It is a super-2 number, since 2×26555967089² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26555967079) 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, 79508717 + ... + 79509050.

It is an arithmetic number, because the mean of its divisors is an integer number (6678746256).

Almost surely, 2^26555967089 is an apocalyptic number.

It is an amenable number.

26555967089 is a deficient number, since it is larger than the sum of its proper divisors (159017935).

26555967089 is a wasteful number, since it uses less digits than its factorization.

26555967089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159017934.

The product of its (nonzero) digits is 40824000, while the sum is 62.

The spelling of 26555967089 in words is "twenty-six billion, five hundred fifty-five million, nine hundred sixty-seven thousand, eighty-nine".