26396001019 has 2 divisors, whose sum is σ = 26396001020. Its totient is φ = 26396001018.

The previous prime is 26396001013. The next prime is 26396001043. The reversal of 26396001019 is 91010069362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26396001019 - 2²¹ = 26393903867 is a prime.

It is a super-2 number, since 2×26396001019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26396001013) 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, 13198000509 + 13198000510.

It is an arithmetic number, because the mean of its divisors is an integer number (13198000510).

Almost surely, 2^26396001019 is an apocalyptic number.

26396001019 is a deficient number, since it is larger than the sum of its proper divisors (1).

26396001019 is an equidigital number, since it uses as much as digits as its factorization.

26396001019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 26396001019 in words is "twenty-six billion, three hundred ninety-six million, one thousand, nineteen".