26346066629 has 2 divisors, whose sum is σ = 26346066630. Its totient is φ = 26346066628.

The previous prime is 26346066601. The next prime is 26346066667. The reversal of 26346066629 is 92666064362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23534628100 + 2811438529 = 153410^2 + 53023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26346066629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26346062629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13173033314 + 13173033315.

It is an arithmetic number, because the mean of its divisors is an integer number (13173033315).

Almost surely, 2^26346066629 is an apocalyptic number.

It is an amenable number.

26346066629 is a deficient number, since it is larger than the sum of its proper divisors (1).

26346066629 is an equidigital number, since it uses as much as digits as its factorization.

26346066629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 50.

The spelling of 26346066629 in words is "twenty-six billion, three hundred forty-six million, sixty-six thousand, six hundred twenty-nine".