26040973069 has 2 divisors, whose sum is σ = 26040973070. Its totient is φ = 26040973068.

The previous prime is 26040972977. The next prime is 26040973097. The reversal of 26040973069 is 96037904062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24044223844 + 1996749225 = 155062^2 + 44685^2 .

It is a cyclic number.

It is not a de Polignac number, because 26040973069 - 2⁷ = 26040972941 is a prime.

It is a super-2 number, since 2×26040973069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26040973169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13020486534 + 13020486535.

It is an arithmetic number, because the mean of its divisors is an integer number (13020486535).

Almost surely, 2^26040973069 is an apocalyptic number.

It is an amenable number.

26040973069 is a deficient number, since it is larger than the sum of its proper divisors (1).

26040973069 is an equidigital number, since it uses as much as digits as its factorization.

26040973069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 26040973069 in words is "twenty-six billion, forty million, nine hundred seventy-three thousand, sixty-nine".