26104456444639 has 2 divisors, whose sum is σ = 26104456444640. Its totient is φ = 26104456444638.

The previous prime is 26104456444621. The next prime is 26104456444733. The reversal of 26104456444639 is 93644465440162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26104456444639 - 2¹⁷ = 26104456313567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26104456444609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13052228222319 + 13052228222320.

It is an arithmetic number, because the mean of its divisors is an integer number (13052228222320).

Almost surely, 2^{26104456444639} is an apocalyptic number.

26104456444639 is a deficient number, since it is larger than the sum of its proper divisors (1).

26104456444639 is an equidigital number, since it uses as much as digits as its factorization.

26104456444639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59719680, while the sum is 58.

The spelling of 26104456444639 in words is "twenty-six trillion, one hundred four billion, four hundred fifty-six million, four hundred forty-four thousand, six hundred thirty-nine".