26505133505651 has 2 divisors, whose sum is σ = 26505133505652. Its totient is φ = 26505133505650.

The previous prime is 26505133505639. The next prime is 26505133505657. The reversal of 26505133505651 is 15650533150562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26505133505651 - 2³⁰ = 26504059763827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26505133505596 and 26505133505605.

It is not a weakly prime, because it can be changed into another prime (26505133505657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13252566752825 + 13252566752826.

It is an arithmetic number, because the mean of its divisors is an integer number (13252566752826).

Almost surely, 2^{26505133505651} is an apocalyptic number.

26505133505651 is a deficient number, since it is larger than the sum of its proper divisors (1).

26505133505651 is an equidigital number, since it uses as much as digits as its factorization.

26505133505651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025000, while the sum is 47.

The spelling of 26505133505651 in words is "twenty-six trillion, five hundred five billion, one hundred thirty-three million, five hundred five thousand, six hundred fifty-one".