26021660713 has 2 divisors, whose sum is σ = 26021660714. Its totient is φ = 26021660712.

The previous prime is 26021660689. The next prime is 26021660761. The reversal of 26021660713 is 31706612062.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25778550249 + 243110464 = 160557^2 + 15592^2 .

It is a cyclic number.

It is not a de Polignac number, because 26021660713 - 2²¹ = 26019563561 is a prime.

It is not a weakly prime, because it can be changed into another prime (26021661713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13010830356 + 13010830357.

It is an arithmetic number, because the mean of its divisors is an integer number (13010830357).

Almost surely, 2^26021660713 is an apocalyptic number.

It is an amenable number.

26021660713 is a deficient number, since it is larger than the sum of its proper divisors (1).

26021660713 is an equidigital number, since it uses as much as digits as its factorization.

26021660713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 26021660713 in words is "twenty-six billion, twenty-one million, six hundred sixty thousand, seven hundred thirteen".