26079221250493 has 2 divisors, whose sum is σ = 26079221250494. Its totient is φ = 26079221250492.

The previous prime is 26079221250473. The next prime is 26079221250517. The reversal of 26079221250493 is 39405212297062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16962849485604 + 9116371764889 = 4118598^2 + 3019333^2 .

It is a cyclic number.

It is not a de Polignac number, because 26079221250493 - 2⁹ = 26079221249981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26079221250493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26079221250473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13039610625246 + 13039610625247.

It is an arithmetic number, because the mean of its divisors is an integer number (13039610625247).

Almost surely, 2^{26079221250493} is an apocalyptic number.

It is an amenable number.

26079221250493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26079221250493 is an equidigital number, since it uses as much as digits as its factorization.

26079221250493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 26079221250493 in words is "twenty-six trillion, seventy-nine billion, two hundred twenty-one million, two hundred fifty thousand, four hundred ninety-three".