26153332069 has 2 divisors, whose sum is σ = 26153332070. Its totient is φ = 26153332068.

The previous prime is 26153332043. The next prime is 26153332091. The reversal of 26153332069 is 96023335162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25102599844 + 1050732225 = 158438^2 + 32415^2 .

It is a cyclic number.

It is not a de Polignac number, because 26153332069 - 2¹³ = 26153323877 is a prime.

It is a super-2 number, since 2×26153332069² (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 (26153332669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13076666034 + 13076666035.

It is an arithmetic number, because the mean of its divisors is an integer number (13076666035).

Almost surely, 2^26153332069 is an apocalyptic number.

It is an amenable number.

26153332069 is a deficient number, since it is larger than the sum of its proper divisors (1).

26153332069 is an equidigital number, since it uses as much as digits as its factorization.

26153332069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 26153332069 in words is "twenty-six billion, one hundred fifty-three million, three hundred thirty-two thousand, sixty-nine".