26706706493 has 2 divisors, whose sum is σ = 26706706494. Its totient is φ = 26706706492.

The previous prime is 26706706469. The next prime is 26706706501. The reversal of 26706706493 is 39460760762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26392601764 + 314104729 = 162458^2 + 17723^2 .

It is a cyclic number.

It is not a de Polignac number, because 26706706493 - 2¹⁰ = 26706705469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26706708493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13353353246 + 13353353247.

It is an arithmetic number, because the mean of its divisors is an integer number (13353353247).

Almost surely, 2^26706706493 is an apocalyptic number.

It is an amenable number.

26706706493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26706706493 is an equidigital number, since it uses as much as digits as its factorization.

26706706493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 26706706493 in words is "twenty-six billion, seven hundred six million, seven hundred six thousand, four hundred ninety-three".