26283719365009 has 2 divisors, whose sum is σ = 26283719365010. Its totient is φ = 26283719365008.

The previous prime is 26283719364941. The next prime is 26283719365243. The reversal of 26283719365009 is 90056391738262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25540166697984 + 743552667025 = 5053728^2 + 862295^2 .

It is a cyclic number.

It is not a de Polignac number, because 26283719365009 - 2²³ = 26283710976401 is a prime.

It is a super-2 number, since 2×26283719365009² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26283719365909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13141859682504 + 13141859682505.

It is an arithmetic number, because the mean of its divisors is an integer number (13141859682505).

Almost surely, 2^{26283719365009} is an apocalyptic number.

It is an amenable number.

26283719365009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26283719365009 is an equidigital number, since it uses as much as digits as its factorization.

26283719365009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 26283719365009 in words is "twenty-six trillion, two hundred eighty-three billion, seven hundred nineteen million, three hundred sixty-five thousand, nine".