26196562849 has 2 divisors, whose sum is σ = 26196562850. Its totient is φ = 26196562848.

The previous prime is 26196562823. The next prime is 26196562853. The reversal of 26196562849 is 94826569162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20525719824 + 5670843025 = 143268^2 + 75305^2 .

It is a cyclic number.

It is not a de Polignac number, because 26196562849 - 2¹⁷ = 26196431777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26196562793 and 26196562802.

It is not a weakly prime, because it can be changed into another prime (26196562549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13098281424 + 13098281425.

It is an arithmetic number, because the mean of its divisors is an integer number (13098281425).

Almost surely, 2^26196562849 is an apocalyptic number.

It is an amenable number.

26196562849 is a deficient number, since it is larger than the sum of its proper divisors (1).

26196562849 is an equidigital number, since it uses as much as digits as its factorization.

26196562849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 58.

The spelling of 26196562849 in words is "twenty-six billion, one hundred ninety-six million, five hundred sixty-two thousand, eight hundred forty-nine".