26342223261 has 4 divisors (see below), whose sum is σ = 35122964352. Its totient is φ = 17561482172.

The previous prime is 26342223233. The next prime is 26342223277. The reversal of 26342223261 is 16232224362.

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 26342223261 - 2¹⁵ = 26342190493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26342224261) 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, 4390370541 + ... + 4390370546.

It is an arithmetic number, because the mean of its divisors is an integer number (8780741088).

Almost surely, 2^26342223261 is an apocalyptic number.

It is an amenable number.

26342223261 is a deficient number, since it is larger than the sum of its proper divisors (8780741091).

26342223261 is an equidigital number, since it uses as much as digits as its factorization.

26342223261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780741090.

The product of its digits is 41472, while the sum is 33.

The spelling of 26342223261 in words is "twenty-six billion, three hundred forty-two million, two hundred twenty-three thousand, two hundred sixty-one".