26011321723 has 4 divisors (see below), whose sum is σ = 26340579040. Its totient is φ = 25682064408.

The previous prime is 26011321697. The next prime is 26011321751. The reversal of 26011321723 is 32712311062.

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

It is a cyclic number.

It is not a de Polignac number, because 26011321723 - 2⁵ = 26011321691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26011321691 and 26011321700.

It is not an unprimeable number, because it can be changed into a prime (26011328723) 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, 164628540 + ... + 164628697.

It is an arithmetic number, because the mean of its divisors is an integer number (6585144760).

Almost surely, 2^26011321723 is an apocalyptic number.

26011321723 is a deficient number, since it is larger than the sum of its proper divisors (329257317).

26011321723 is an equidigital number, since it uses as much as digits as its factorization.

26011321723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329257316.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 26011321723 its reverse (32712311062), we get a palindrome (58723632785).

The spelling of 26011321723 in words is "twenty-six billion, eleven million, three hundred twenty-one thousand, seven hundred twenty-three".