26288148349 has 2 divisors, whose sum is σ = 26288148350. Its totient is φ = 26288148348.

The previous prime is 26288148301. The next prime is 26288148361. The reversal of 26288148349 is 94384188262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16819496100 + 9468652249 = 129690^2 + 97307^2 .

It is a cyclic number.

It is not a de Polignac number, because 26288148349 - 2¹⁹ = 26287624061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26288148349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26288148749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13144074174 + 13144074175.

It is an arithmetic number, because the mean of its divisors is an integer number (13144074175).

Almost surely, 2^26288148349 is an apocalyptic number.

It is an amenable number.

26288148349 is a deficient number, since it is larger than the sum of its proper divisors (1).

26288148349 is an equidigital number, since it uses as much as digits as its factorization.

26288148349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5308416, while the sum is 55.

The spelling of 26288148349 in words is "twenty-six billion, two hundred eighty-eight million, one hundred forty-eight thousand, three hundred forty-nine".