26197353541 has 2 divisors, whose sum is σ = 26197353542. Its totient is φ = 26197353540.

The previous prime is 26197353527. The next prime is 26197353569. The reversal of 26197353541 is 14535379162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23254725025 + 2942628516 = 152495^2 + 54246^2 .

It is a cyclic number.

It is not a de Polignac number, because 26197353541 - 2⁵ = 26197353509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26197353491 and 26197353500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26197353521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13098676770 + 13098676771.

It is an arithmetic number, because the mean of its divisors is an integer number (13098676771).

Almost surely, 2^26197353541 is an apocalyptic number.

It is an amenable number.

26197353541 is a deficient number, since it is larger than the sum of its proper divisors (1).

26197353541 is an equidigital number, since it uses as much as digits as its factorization.

26197353541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The spelling of 26197353541 in words is "twenty-six billion, one hundred ninety-seven million, three hundred fifty-three thousand, five hundred forty-one".