26520276463 has 2 divisors, whose sum is σ = 26520276464. Its totient is φ = 26520276462.

The previous prime is 26520276443. The next prime is 26520276499. The reversal of 26520276463 is 36467202562.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26520276463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26520276413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13260138231 + 13260138232.

It is an arithmetic number, because the mean of its divisors is an integer number (13260138232).

Almost surely, 2^26520276463 is an apocalyptic number.

26520276463 is a deficient number, since it is larger than the sum of its proper divisors (1).

26520276463 is an equidigital number, since it uses as much as digits as its factorization.

26520276463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 26520276463 in words is "twenty-six billion, five hundred twenty million, two hundred seventy-six thousand, four hundred sixty-three".