26026356457 has 2 divisors, whose sum is σ = 26026356458. Its totient is φ = 26026356456.

The previous prime is 26026356407. The next prime is 26026356467. The reversal of 26026356457 is 75465362062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13646678761 + 12379677696 = 116819^2 + 111264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26026356457 is a prime.

It is not a weakly prime, because it can be changed into another prime (26026356407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13013178228 + 13013178229.

It is an arithmetic number, because the mean of its divisors is an integer number (13013178229).

Almost surely, 2^26026356457 is an apocalyptic number.

It is an amenable number.

26026356457 is a deficient number, since it is larger than the sum of its proper divisors (1).

26026356457 is an equidigital number, since it uses as much as digits as its factorization.

26026356457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 26026356457 in words is "twenty-six billion, twenty-six million, three hundred fifty-six thousand, four hundred fifty-seven".