26452311421 has 2 divisors, whose sum is σ = 26452311422. Its totient is φ = 26452311420.

The previous prime is 26452311383. The next prime is 26452311451. The reversal of 26452311421 is 12411325462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26046732100 + 405579321 = 161390^2 + 20139^2 .

It is a cyclic number.

It is not a de Polignac number, because 26452311421 - 2⁹ = 26452310909 is a prime.

It is a super-3 number, since 3×26452311421³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26452311451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13226155710 + 13226155711.

It is an arithmetic number, because the mean of its divisors is an integer number (13226155711).

Almost surely, 2^26452311421 is an apocalyptic number.

It is an amenable number.

26452311421 is a deficient number, since it is larger than the sum of its proper divisors (1).

26452311421 is an equidigital number, since it uses as much as digits as its factorization.

26452311421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

Adding to 26452311421 its reverse (12411325462), we get a palindrome (38863636883).

The spelling of 26452311421 in words is "twenty-six billion, four hundred fifty-two million, three hundred eleven thousand, four hundred twenty-one".