26490224837 has 2 divisors, whose sum is σ = 26490224838. Its totient is φ = 26490224836.

The previous prime is 26490224833. The next prime is 26490224911. The reversal of 26490224837 is 73842209462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23437772836 + 3052452001 = 153094^2 + 55249^2 .

It is a cyclic number.

It is not a de Polignac number, because 26490224837 - 2² = 26490224833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26490224791 and 26490224800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26490224833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13245112418 + 13245112419.

It is an arithmetic number, because the mean of its divisors is an integer number (13245112419).

Almost surely, 2^26490224837 is an apocalyptic number.

It is an amenable number.

26490224837 is a deficient number, since it is larger than the sum of its proper divisors (1).

26490224837 is an equidigital number, since it uses as much as digits as its factorization.

26490224837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 26490224837 in words is "twenty-six billion, four hundred ninety million, two hundred twenty-four thousand, eight hundred thirty-seven".