26722462989679 has 2 divisors, whose sum is σ = 26722462989680. Its totient is φ = 26722462989678.

The previous prime is 26722462989623. The next prime is 26722462989731. The reversal of 26722462989679 is 97698926422762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26722462989679 - 2¹⁵ = 26722462956911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26722462989599 and 26722462989608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26722462999679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13361231494839 + 13361231494840.

It is an arithmetic number, because the mean of its divisors is an integer number (13361231494840).

Almost surely, 2^{26722462989679} is an apocalyptic number.

26722462989679 is a deficient number, since it is larger than the sum of its proper divisors (1).

26722462989679 is an equidigital number, since it uses as much as digits as its factorization.

26722462989679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3950456832, while the sum is 79.

The spelling of 26722462989679 in words is "twenty-six trillion, seven hundred twenty-two billion, four hundred sixty-two million, nine hundred eighty-nine thousand, six hundred seventy-nine".