26693866725161 has 2 divisors, whose sum is σ = 26693866725162. Its totient is φ = 26693866725160.

The previous prime is 26693866725091. The next prime is 26693866725199. The reversal of 26693866725161 is 16152766839662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26692877245225 + 989479936 = 5166515^2 + 31456^2 .

It is a cyclic number.

It is not a de Polignac number, because 26693866725161 - 2¹⁴ = 26693866708777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26693866725091 and 26693866725100.

It is not a weakly prime, because it can be changed into another prime (26693866721161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13346933362580 + 13346933362581.

It is an arithmetic number, because the mean of its divisors is an integer number (13346933362581).

Almost surely, 2^{26693866725161} is an apocalyptic number.

It is an amenable number.

26693866725161 is a deficient number, since it is larger than the sum of its proper divisors (1).

26693866725161 is an equidigital number, since it uses as much as digits as its factorization.

26693866725161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235146240, while the sum is 68.

The spelling of 26693866725161 in words is "twenty-six trillion, six hundred ninety-three billion, eight hundred sixty-six million, seven hundred twenty-five thousand, one hundred sixty-one".