26446506851 has 2 divisors, whose sum is σ = 26446506852. Its totient is φ = 26446506850.

The previous prime is 26446506803. The next prime is 26446506883. The reversal of 26446506851 is 15860564462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26446506851 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 26446506796 and 26446506805.

It is not a weakly prime, because it can be changed into another prime (26446500851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13223253425 + 13223253426.

It is an arithmetic number, because the mean of its divisors is an integer number (13223253426).

Almost surely, 2^26446506851 is an apocalyptic number.

26446506851 is a deficient number, since it is larger than the sum of its proper divisors (1).

26446506851 is an equidigital number, since it uses as much as digits as its factorization.

26446506851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 26446506851 in words is "twenty-six billion, four hundred forty-six million, five hundred six thousand, eight hundred fifty-one".