26991179292703 has 2 divisors, whose sum is σ = 26991179292704. Its totient is φ = 26991179292702.

The previous prime is 26991179292617. The next prime is 26991179292719. The reversal of 26991179292703 is 30729297119962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26991179292703 - 2⁴¹ = 24792156037151 is a prime.

It is a super-2 number, since 2×26991179292703² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26991179392703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13495589646351 + 13495589646352.

It is an arithmetic number, because the mean of its divisors is an integer number (13495589646352).

Almost surely, 2^{26991179292703} is an apocalyptic number.

26991179292703 is a deficient number, since it is larger than the sum of its proper divisors (1).

26991179292703 is an equidigital number, since it uses as much as digits as its factorization.

26991179292703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46294416, while the sum is 67.

The spelling of 26991179292703 in words is "twenty-six trillion, nine hundred ninety-one billion, one hundred seventy-nine million, two hundred ninety-two thousand, seven hundred three".