26567809061 has 4 divisors (see below), whose sum is σ = 26568294624. Its totient is φ = 26567323500.

The previous prime is 26567809043. The next prime is 26567809087. The reversal of 26567809061 is 16090876562.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16090876562 = 2 ⋅8045438281.

It is a cyclic number.

It is not a de Polignac number, because 26567809061 - 2¹⁴ = 26567792677 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 (26567809361) 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, 148505 + ... + 274206.

It is an arithmetic number, because the mean of its divisors is an integer number (6642073656).

Almost surely, 2^26567809061 is an apocalyptic number.

It is an amenable number.

26567809061 is a deficient number, since it is larger than the sum of its proper divisors (485563).

26567809061 is an equidigital number, since it uses as much as digits as its factorization.

26567809061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485562.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 26567809061 in words is "twenty-six billion, five hundred sixty-seven million, eight hundred nine thousand, sixty-one".