26421612463 has 2 divisors, whose sum is σ = 26421612464. Its totient is φ = 26421612462.

The previous prime is 26421612431. The next prime is 26421612499. The reversal of 26421612463 is 36421612462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26421612463 - 2⁵ = 26421612431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26421642463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13210806231 + 13210806232.

It is an arithmetic number, because the mean of its divisors is an integer number (13210806232).

Almost surely, 2^26421612463 is an apocalyptic number.

26421612463 is a deficient number, since it is larger than the sum of its proper divisors (1).

26421612463 is an equidigital number, since it uses as much as digits as its factorization.

26421612463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

Subtracting 26421612463 from its reverse (36421612462), we obtain a palindrome (9999999999).

The spelling of 26421612463 in words is "twenty-six billion, four hundred twenty-one million, six hundred twelve thousand, four hundred sixty-three".