26626639141673 has 2 divisors, whose sum is σ = 26626639141674. Its totient is φ = 26626639141672.

The previous prime is 26626639141643. The next prime is 26626639141699. The reversal of 26626639141673 is 37614193662662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26623040701504 + 3598440169 = 5159752^2 + 59987^2 .

It is a cyclic number.

It is not a de Polignac number, because 26626639141673 - 2¹⁶ = 26626639076137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26626639141643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13313319570836 + 13313319570837.

It is an arithmetic number, because the mean of its divisors is an integer number (13313319570837).

Almost surely, 2^{26626639141673} is an apocalyptic number.

It is an amenable number.

26626639141673 is a deficient number, since it is larger than the sum of its proper divisors (1).

26626639141673 is an equidigital number, since it uses as much as digits as its factorization.

26626639141673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 62.

The spelling of 26626639141673 in words is "twenty-six trillion, six hundred twenty-six billion, six hundred thirty-nine million, one hundred forty-one thousand, six hundred seventy-three".