26809486841 has 2 divisors, whose sum is σ = 26809486842. Its totient is φ = 26809486840.

The previous prime is 26809486819. The next prime is 26809486861. The reversal of 26809486841 is 14868490862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14255404816 + 12554082025 = 119396^2 + 112045^2 .

It is a cyclic number.

It is not a de Polignac number, because 26809486841 - 2¹⁰ = 26809485817 is a prime.

It is not a weakly prime, because it can be changed into another prime (26809486861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13404743420 + 13404743421.

It is an arithmetic number, because the mean of its divisors is an integer number (13404743421).

Almost surely, 2^26809486841 is an apocalyptic number.

It is an amenable number.

26809486841 is a deficient number, since it is larger than the sum of its proper divisors (1).

26809486841 is an equidigital number, since it uses as much as digits as its factorization.

26809486841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 26809486841 in words is "twenty-six billion, eight hundred nine million, four hundred eighty-six thousand, eight hundred forty-one".