26261055049 has 2 divisors, whose sum is σ = 26261055050. Its totient is φ = 26261055048.

The previous prime is 26261055013. The next prime is 26261055053. The reversal of 26261055049 is 94055016262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13143476025 + 13117579024 = 114645^2 + 114532^2 .

It is a cyclic number.

It is not a de Polignac number, because 26261055049 - 2¹¹ = 26261053001 is a prime.

It is not a weakly prime, because it can be changed into another prime (26261052049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130527524 + 13130527525.

It is an arithmetic number, because the mean of its divisors is an integer number (13130527525).

Almost surely, 2^26261055049 is an apocalyptic number.

It is an amenable number.

26261055049 is a deficient number, since it is larger than the sum of its proper divisors (1).

26261055049 is an equidigital number, since it uses as much as digits as its factorization.

26261055049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 26261055049 in words is "twenty-six billion, two hundred sixty-one million, fifty-five thousand, forty-nine".